How Do You Build a Tech Pack for a Custom Printed Men's Shirt?

Custom Printed Shirts for Men are easier to develop, price, and produce when the supplier receives a complete tech pack. A tech pack turns a creative idea into measurable production instructions for a pattern maker, garment factory, printer, and quality control team.

This guide explains how to build a professional men's shirt tech pack from the first concept to the final production sample. It focuses on the details purchasing teams usually need most: accurate pricing, reliable print reproduction, consistent sizing, material confirmation, clear factory communication, and fewer costly revisions.

Start with a clear product brief before drawing the shirt

Define the customer, use case, and shirt style

The first part of a tech pack should explain what the shirt is, who will wear it, and where it will be used. A factory can make a shirt from a sketch, but it cannot make correct production decisions if the product purpose is unclear.

Write a short product brief that includes:

• Target customer, such as young adults, corporate buyers, outdoor consumers, or streetwear customers.
• Intended use, such as daily wear, uniforms, promotional events, retail collections, or online fashion sales.
• Garment category, such as short sleeve shirt, long sleeve shirt, camp collar shirt, button-down shirt, polo shirt, overshirt, or resort shirt.
• Fit direction, such as slim, regular, relaxed, oversized, or boxy.
• Season and climate, such as summer, transitional weather, tropical weather, or year-round wear.
• Target retail price and estimated target factory price.
• Expected order quantity and size range.

For example, the brief may state: "A relaxed-fit short sleeve men's woven shirt for summer retail, made from lightweight cotton, featuring an all-over tropical print, coconut buttons, a straight hem, and a soft washed appearance."

Record the design decisions that affect cost

Purchasing teams need to know which features are essential and which features can be adjusted if the price is too high. Separate the design into must-have and flexible elements.

• Must-have details: custom artwork, fabric composition, collar shape, fit, pocket position, and brand labeling.
• Flexible details: button material, packaging, seam finishing, fabric weight, and print method.
• Cost-sensitive details: multiple colorways, contrast panels, special washes, embroidery, hidden plackets, lining, and custom hardware.

This information helps the supplier offer practical alternatives instead of making unauthorized substitutions. It also allows buyers to compare quotations from different factories on the same specification.

Collect the required tools and reference files

Use the right design and measurement tools

A professional tech pack does not require expensive software, but it does require organized files and accurate measurements. Use tools that allow the buyer and factory to review, edit, and approve each specification.

Recommended tools include:

• Adobe Illustrator, CorelDRAW, or another vector design program for technical sketches and artwork.
• Adobe Photoshop or another image editing program for print placement and color previews.
• Microsoft Excel, Google Sheets, or a product lifecycle management system for the measurement chart.
• Adobe Acrobat or another PDF tool for the final supplier-ready document.
• A measuring tape, ruler, and sample garment for checking dimensions.
• A Pantone color reference, physical fabric swatches, and print strike-offs for color approval.
• A cloud storage folder with controlled file names and version history.
• A camera or smartphone for photographing reference samples and construction details.

Prepare the reference files before writing specifications

Gather all visual and technical references before sending the first inquiry. Missing files are one of the main reasons factories make assumptions.

Your reference folder should contain:

• Front, back, side, and detail sketches.
• Flat technical drawings without a model or distracting background.
• Print artwork in editable vector format whenever possible.
• High-resolution raster artwork for complex photographic or watercolor prints.
• Color references using Pantone codes or approved physical swatches.
• Fabric composition and weight references.
• Reference garments that show the preferred fit or construction.
• Label, hangtag, packaging, and folding instructions.
• Previous approved samples, if the product is being revised.

Use simple file names such as "MIM_Mens_Shirt_Front_v01.ai" and "MIM_Mens_Shirt_Measurement_v01.xlsx." Avoid names such as "final," "final2," or "newest final," because they create confusion when several revisions are exchanged.

Build the technical sketch and construction page

Draw accurate front, back, and detail views

The technical sketch, also called a flat sketch, shows how the garment is constructed. It should not look like a fashion illustration. Use clean lines and include every visible component that affects production.

Include the following views:

• Front view showing the collar, buttons, placket, chest pocket, print placement, sleeve, and hem.
• Back view showing the back yoke, center back seam, pleat, print placement, and hem.
• Side view when the silhouette, side panels, or hem shape needs clarification.
• Collar detail showing collar points, collar stand, topstitching, and button position.
• Sleeve detail showing cuff, sleeve opening, pleat, tab, or rolled sleeve construction.
• Pocket detail showing dimensions, shape, placement, and opening finish.
• Label and packaging detail showing the position of the main label, care label, size label, hangtag, and folding method.

Use callout numbers on the drawing and explain each number in a construction table. For example, callout 1 may identify a 10 mm double-needle topstitch, callout 2 may identify a self-fabric collar, and callout 3 may identify a five-button front placket.

Describe every construction detail in plain language

Never rely on the drawing alone. State the construction requirements in writing so that the factory can interpret them consistently.

Construction notes may include:

• Use a one-piece or two-piece collar according to the approved sketch.
• Apply fusible interlining to the collar and front placket if required.
• Use a clean-finished armhole with specified seam allowance.
• Use a single-needle or double-needle topstitch and state the stitch distance.
• Specify whether seams are overlocked, French finished, bound, or flat felled.
• State the button size, material, color, number of holes, and attachment method.
• State whether the hem is straight, curved, vented, or shirttail shaped.
• Specify bartacks at pocket corners, placket ends, or stress points when required.
• Identify areas that must not contain visible puckering, skipped stitches, loose threads, or exposed seam allowance.

Include a seam and stitch standard where possible. A production note such as "use neat overlock finishing with no raw edge exposure" is more useful than simply writing "high quality."

Specify fabric, trims, labels, and color in measurable terms

Write a complete fabric specification

Fabric affects comfort, appearance, shrinkage, print performance, lead time, and final cost. Do not identify fabric only by a general name such as "cotton" or "polyester."

List the following fabric information:

• Fiber content, such as 100 percent cotton, cotton-polyester blend, rayon, linen blend, or recycled polyester.
• Fabric construction, such as poplin, twill, oxford, satin, canvas, jersey, or woven dobby.
• Fabric weight in GSM or ounces per square yard.
• Width and usable cutting width.
• Fabric finish, such as garment wash, enzyme wash, peach finish, wrinkle resistance, or water repellency.
• Stretch percentage and recovery if elastane is included.
• Color standard and dye method.
• Shrinkage tolerance after washing.
• Colorfastness requirements for washing, rubbing, perspiration, and light.

For a lightweight printed summer shirt, a specification might state: "100 percent cotton poplin, 110 to 125 GSM, soft washed finish, maximum dimensional change of 3 percent after the approved wash test, and colorfastness according to the buyer's testing standard."

List trims and branding components

Every trim should have a location, material, size, color, and approval requirement. This prevents the factory from choosing a substitute that changes the product appearance.

Include details for:

• Main woven label, including dimensions, fold type, material, logo colors, and sewing position.
• Size label, including size format and location.
• Care label, including language, fiber content, washing symbols, country of origin, and sewing method.
• Hangtag, including card stock, artwork, hole position, string, and attachment location.
• Buttons, including diameter, thickness, material, color, logo, and spare button requirement.
• Zippers, snaps, drawcords, cord ends, elastic, and other hardware.
• Polybag, carton, tissue paper, stickers, barcode labels, and folding boards.

Control color with approved standards

Digital colors shown on a screen are not reliable enough for bulk production approval. Use Pantone references for communication and physical strike-offs or lab dips for final confirmation.

Define which color must match:

• The base fabric.
• The printed artwork.
• The thread.
• The buttons and hardware.
• The labels and packaging.

State whether the print should match the artwork exactly or whether minor color variation is acceptable. Also specify whether the print is intended to have a soft hand, raised surface, matte finish, glossy finish, distressed effect, or vintage appearance.

Create a precise measurement chart and grading rules

Choose the base size and measurement method

The measurement chart is one of the most important sections in a shirt tech pack. It allows the factory to create the pattern and helps the purchasing team compare samples against the approved standard.

First, select a base size, such as men's medium. Then define how every point of measure is taken. A factory may measure the same area differently unless the method is clearly stated.

Common points of measure for a men's shirt include:

• Body length measured from the high shoulder point to the bottom hem.
• Chest measured one inch below the armhole, across the garment, then doubled if required.
• Shoulder measured from shoulder seam to shoulder seam.
• Sleeve length measured from shoulder seam to sleeve opening.
• Across back measured between the back armholes.
• Neck width measured from collar seam to collar seam.
• Collar point length measured from collar stand to collar point.
• Armhole measured around the opening or along the specified flat method.
• Bicep measured one inch below the armhole.
• Sleeve opening measured straight across the finished opening.
• Bottom opening measured across the hem.
• Pocket width and pocket height.
• Pocket placement from the high shoulder point and center front.
• Button spacing and first button position.
• Hem width and side vent length, if applicable.

Build the measurement chart with tolerances

List the finished garment measurement for every size. Add a tolerance so the factory knows the acceptable variation.

The figures above are examples only. Use measurements based on the approved fit block and target market. Do not copy a chart without checking the actual sample garment.

Define grading between sizes

Grading explains how the pattern changes from one size to another. State the increments for body width, body length, shoulder, sleeve, collar, and other important areas.

Check that:

• The chest increases evenly between sizes.
• The shoulder does not become disproportionately wide.
• The sleeve opening remains comfortable.
• The collar circumference fits the intended neck size.
• The pocket and print placement remain visually balanced in every size.
• The length changes according to the intended fit rather than using the same increase everywhere.

For large all-over prints, consider whether the artwork should scale with the garment size. If the print remains the same size in every size, state this clearly. If the print must scale, provide the scale rule or separate files.

Plan the print artwork and placement for production

Choose the print method based on fabric and quantity

The print method affects color accuracy, hand feel, durability, minimum order quantity, setup cost, and lead time. The tech pack should identify the preferred method and allow the supplier to recommend a better option when appropriate.

• Screen printing is suitable for strong solid colors and larger quantities, but each color may require a separate screen and setup.
• Digital direct-to-garment printing is useful for detailed artwork and smaller quantities, but results depend on fabric and pretreatment.
• Digital sublimation works best on polyester and can create full-color all-over designs, but it is generally unsuitable for most natural cotton fabrics.
• Direct-to-fabric digital printing is suitable for all-over woven fabric designs and detailed color variation.
• Heat transfer printing is useful for names, numbers, logos, and small production runs, but the transfer may affect breathability and hand feel.
• Discharge printing can create a soft result on suitable dark cotton fabrics, but fabric dye and chemical compatibility must be tested.
• Embroidery is not a print method, but it may be added to the chest, sleeve, or pocket as a separate decoration.

Prepare print-ready artwork files

Provide artwork in the format the printer can use. Vector files are preferred for logos, line art, and repeat patterns. High-resolution raster files are suitable for photographs and complex textures.

Artwork specifications should include:

• File format, such as AI, EPS, PDF, PSD, TIFF, or high-resolution PNG.
• Color mode, such as CMYK, RGB, or a specified spot color system.
• Resolution, normally at least 300 DPI at final print size for raster artwork.
• Transparent background where required.
• Bleed and safe area for cut panels.
• Repeat size for all-over prints.
• Artwork scale and orientation.
• Color references and approved print strike-off.
• Whether the print must align across seams, pockets, plackets, or collar pieces.

Map the print placement and registration points

Print placement must be measured from stable garment reference points. Do not write "centered on front" without defining the location.

Specify:

• Distance from the high shoulder point to the top of the print.
• Distance from the center front or side seam to the print center.
• Print width and height at the base size.
• Placement on the back, sleeve, pocket, collar, or placket.
• Maximum acceptable placement tolerance.
• Whether the print continues over seams or stops at panel edges.
• Whether the pocket print must match the body print.
• Whether left and right sleeves must mirror each other.

For an all-over shirt, include a panel map that shows how the artwork is positioned on the body front, body back, sleeves, collar, cuffs, and pocket. State whether pattern matching is required and identify the acceptable mismatch tolerance.

Follow a step-by-step tech pack development process

First step: Define the product requirements

Write the product brief, target customer, fit, fabric direction, print concept, target quantity, target price, and delivery date. Confirm which features are mandatory before contacting a supplier.

Second step: Create the technical flat

Draw the front, back, side, and detail views. Add callout numbers for the collar, placket, pocket, sleeves, hem, labels, buttons, seams, and print areas.

Third step: Select the fabric and trims

Record the fiber content, weave, GSM, finish, width, color, shrinkage target, and performance requirements. Add a complete trim list with approved materials and dimensions.

Fourth step: Prepare the measurement chart

Choose the base size, define every point of measure, enter finished garment measurements, set tolerances, and add grading rules for the full size range.

Fifth step: Add construction instructions

Explain seam types, stitch types, seam allowances, topstitch distances, collar construction, button spacing, pocket construction, hem finishing, reinforcement points, and label positions.

Sixth step: Add print specifications

Attach production-ready artwork, list the print method, define color references, state print size, show placement measurements, explain repeat direction, and identify panel matching requirements.

Seventh step: Add packaging and compliance information

State the folding method, polybag size, barcode position, carton quantity, carton markings, hangtag attachment, country of origin, care content, fiber content, and any market-specific compliance requirements.

Eighth step: Send the tech pack for quotation

Send the PDF tech pack together with editable artwork, the measurement spreadsheet, and any physical reference samples. Ask the factory to confirm fabric availability, minimum order quantity, sample cost, bulk price, production lead time, print limitations, and testing requirements.

Ninth step: Review the development sample

Measure the sample against the chart, inspect the construction, compare the fabric with the approved reference, check the print scale and placement, and test the fit on the intended wearer or fit model.

Tenth step: Record corrections and approve the pre-production sample

Mark every correction by page and callout number. Update the measurement chart, artwork, construction notes, and trim list. Approve a dated pre-production sample before bulk cutting begins.

Eleventh step: Freeze the production version

Save the approved tech pack as a controlled version. Add the approval date, sample reference number, buyer approval, factory confirmation, and revision history. Only the approved version should be used for cutting, printing, sewing, and inspection.

Use a sample review and quality control checklist

Check fit and measurements before approval

Measure the sample on a flat surface using the same method described in the tech pack. Record actual measurements and compare them with the target and tolerance.

• Check body length, chest, shoulder, sleeve length, bicep, sleeve opening, and bottom opening.
• Check collar width, collar point length, collar stand, and neck comfort.
• Check pocket width, pocket height, and pocket position.
• Check button spacing, buttonhole size, and front placket alignment.
• Check sleeve balance and side seam alignment.
• Check hem level, side vents, and shirt tail shape.

Check fabric and print performance

Inspect the sample under normal lighting and after any required wash test. A print may look correct before washing but crack, fade, bleed, shrink, or distort afterward.

• Compare the print colors with the approved strike-off.
• Check print scale, repeat size, and direction.
• Check registration between colors.
• Check placement from the high shoulder point and center front.
• Check print alignment across pocket, placket, collar, and seams.
• Check hand feel, coverage, opacity, and surface appearance.
• Wash the garment according to the care instruction and inspect fading, cracking, shrinkage, and distortion.

Check sewing and finishing quality

Look for issues that affect appearance, comfort, and durability. Purchasing teams should document defects with photographs and identify whether the issue is a design correction or a production defect.

• No skipped stitches, broken stitches, open seams, or loose thread tails.
• No twisting at the side seams, sleeves, collar, or placket.
• No puckering around the print, pocket, buttons, or armhole.
• Even topstitching and consistent seam allowance.
• Secure buttons and correctly sized buttonholes.
• Clean and readable labels sewn in the correct position.
• Correct folding, packing, carton quantity, and barcode information.

Avoid the common tech pack mistakes that create delays

Do not use vague instructions

Words such as "premium," "soft," "large logo," "regular length," and "match the sample" are not measurable enough. Replace them with a material specification, measurement, tolerance, reference image, or approved physical sample.

Do not omit the measurement method

A measurement without a method can produce different results between the designer, buyer, and factory. Show the measurement points on a diagram and state whether the garment is measured flat, around the body, from seam to seam, or from a reference point.

Do not send low-resolution or incomplete artwork

Low-resolution files create blurry edges, inaccurate color, and incorrect print size. Supply editable files, outlined fonts, linked images, color references, and final dimensions.

Do not approve screen colors as final colors

Monitor settings vary. Require a physical lab dip, print strike-off, or fabric swatch when color accuracy matters. Keep the approved reference with the final tech pack.

Do not ignore fabric shrinkage and print distortion

Woven fabric may shrink after washing, while panels can shift during printing and cutting. Test the actual fabric and print method before bulk production. Add the accepted shrinkage and print placement tolerance to the specification.

Do not change files without updating the revision number

Unmarked changes to artwork, measurements, fabric, or trims can cause the factory to use an outdated instruction. Maintain a revision history that identifies the change, date, person responsible, and approval status.

Do not leave packaging until the end

Missing packaging instructions can delay shipment even when the garments are complete. Add the folding method, polybag warning, size sticker, barcode, carton details, and required documents before bulk production starts.

Organize the final tech pack for purchasing and factory communication

Use a practical tech pack page order

Arrange the document so that a supplier can find important information quickly. A recommended order is:

1. Cover page with style name, style number, season, buyer, date, and revision number.
2. Product overview and design intent.
3. Front, back, side, and detail technical sketches.
4. Construction and sewing specifications.
5. Fabric and color specifications.
6. Trim and branding specifications.
7. Measurement chart and grading rules.
8. Print artwork, print method, placement, and color references.
9. Label, care, packaging, and carton instructions.
10. Quality standards, testing requirements, and inspection points.
11. Sample comments and revision history.
12. Approval page with signatures or written approval records.

Separate editable files from the approved PDF

Send the factory a locked or clearly marked approved PDF for production reference. Keep editable Illustrator, Photoshop, spreadsheet, and artwork files in a separate folder for controlled revisions.

A complete delivery package may include:

• Approved tech pack PDF.
• Editable technical drawings.
• Editable print artwork.
• Measurement chart spreadsheet.
• Approved fabric and color references.
• Label and packaging artwork.
• Sample comment sheet.
• Revision history.

Ask the supplier for written confirmation

Before development begins, ask the supplier to confirm that the following information is understood:

• Style number and revision number.
• Fabric composition, weight, finish, and color.
• Print method, print area, artwork scale, and color target.
• Sample price and sample lead time.
• Minimum order quantity and price breaks.
• Bulk production lead time.
• Testing, inspection, and compliance requirements.
• Packaging and shipping instructions.

Written confirmation makes quotation comparison easier and gives the purchasing team a record if a production question appears later.

What a complete men's shirt tech pack should contain

Final checklist before sending the document

• Product name and style number are shown on every page.
• Revision number and date are clearly marked.
• Front, back, side, and detail sketches are included.
• Fabric composition, GSM, construction, finish, and shrinkage are specified.
• All trims, buttons, labels, and packaging components are listed.
• Measurement points, target measurements, tolerances, and grading are included.
• Construction notes explain seams, stitches, hems, plackets, collars, pockets, and reinforcement.
• Print artwork is high resolution and supplied in the correct format.
• Print method, colors, size, placement, repeat, and alignment requirements are clear.
• Care labels and compliance information are complete.
• Sample review comments are attached and dated.
• Approval status is clear and the factory knows which file is the production version.

Use the tech pack to reduce purchasing risk

A well-built tech pack helps purchasing teams solve the problems that most often affect custom apparel orders. It creates a common reference for design, sourcing, production, quality control, and logistics.

• More accurate quotations because the supplier can calculate materials and labor from defined specifications.
• Fewer sample revisions because measurements, print placement, and construction are documented.
• More consistent bulk production because the approved sample and tech pack use the same standards.
• Better supplier comparison because every factory receives the same product requirements.
• Lower risk of unauthorized substitutions for fabric, trims, labels, or printing.
• Faster quality inspections because defects can be checked against measurable tolerances.
• Clearer accountability when a change or production problem occurs.

For brands developing Custom Printed Shirts for Men, a tech pack is not just a design document. It is the operational agreement that connects the buyer's idea with the supplier's production process. Meninthemirror can use this document as the starting point for clearer sampling, print development, and bulk manufacturing discussions at .