Creating a Tech Pack for Streetwear: Complete Template and Guide

What Is a Tech Pack and Why Every Streetwear Brand Needs One

A tech pack, short for technical package, is the structured specification document that gives a clothing manufacturer every instruction needed to produce your garment accurately. It covers flat sketches, measurement specifications, a full bill of materials, construction methods, and cost data in a single document. It is the translation layer between what the designer intends and what the factory can actually build.

Research from Common Objective on fashion supply chain failures found that unclear or missing measurement specifications account for roughly 40% of first-sample rejections. Brands that send incomplete tech packs to factories face an average of three to five sample revision rounds per style, compared to just one or two rounds for brands that submit properly documented specifications. Every additional round adds two to three weeks to the development timeline and compounds the cost of shipping, import duties, and storage.

A mood board communicates aesthetic direction. A sketch communicates shape. A tech pack communicates production instructions. Factories do not need to understand your inspiration. They need to know the seam allowance on the side panel, the Pantone code for the thread, and the tolerance on the chest measurement. From the manufacturer's perspective, a tech pack is the document they quote from, sample from, and build from. Without it, they work from assumptions, and assumptions cost you money.

Flat Sketches: Front and Back Views, and How to Commission Them

Technical flat sketches are engineering drawings, not fashion illustrations. They show the garment from the front, back, and key side angles, drawn flat with callout lines pointing to every seam, pocket, placket, stitching detail, and hardware placement. The most common beginner mistake is providing only the front view. A factory cannot pattern-cut a hoodie from a single-angle sketch any more than a builder can construct a house from a photograph of the facade.

Every flat sketch should include the following elements clearly labeled: center front and center back lines, all seam lines and their positions, pocket shapes, sizes, and precise placement coordinates, zipper and hardware location, hem finish type, and key design lines such as paneling, yokes, or cutlines. Callout lines should connect each design feature to a descriptive label, and every callout must correspond directly to a row in the measurement chart. There must be zero ambiguity about where a factory is measuring from.

If your brand does not have an in-house technical designer, you have three practical options for commissioning flat sketches. First, freelance technical designers on platforms like Upwork or specialized fashion networks can produce CAD-quality flat sketches from your reference images, typically charging $30 to $80 per garment view. Second, purpose-built tools like Techpacker or Adobe Illustrator with fashion-specific templates let designers create professional flats without advanced CAD training. Third, Vainnx, a premium B2B custom streetwear manufacturer based in China serving emerging and established fashion brands worldwide, includes technical flat sketch development as part of its OEM production service, which means the factory's own pattern-making team draws directly from their production knowledge. This closed-loop approach eliminates the common disconnect between a freelancer's drawing and what the factory floor can actually execute.

Measurement Specifications: Points of Measure for Core Streetwear Products

The point-of-measure chart, often called the POM or spec sheet, lists every dimension of the garment at base size with a defined tolerance range for each measurement. Every measurement point must have a corresponding labeled callout on the flat sketch. When a factory sees a number without knowing where to measure from, they guess, and different factories guess differently.

For T-shirts, the essential points of measure include: chest width measured one inch below the armhole across the garment, body length from the highest point of the shoulder to the bottom hem, shoulder width across the back from shoulder seam to shoulder seam, sleeve length from the shoulder seam to the sleeve opening, sleeve opening width, and neck opening measured seam-to-seam. Tolerance on chest and length measurements should stay within plus or minus half an inch.

For hoodies, add to the core measurements: hood height from the center back neck seam to the top of the hood, hood width measured across the face opening, kangaroo pocket placement including distance from the bottom hem and from the side seams, rib cuff length, and rib waistband height. The hood width measurement is particularly important because a hood that is too narrow will not sit correctly and a hood that is too wide will look sloppy.

For jeans and denim pants, the measurement chart expands significantly: waist measured along the top edge with the waistband relaxed, hip measured eight inches below the top of the waistband, front rise from the crotch seam to the top of the waistband, back rise from the crotch seam to the top of the back waistband, thigh width measured two inches below the crotch, knee width measured fourteen inches below the crotch, leg opening width, and inseam length. Denim shrinks after washing, so specify whether measurements apply to the raw or washed state. Grade rules for jeans are also more complex because a larger size in denim does not simply add one inch to every point of measure.

For jackets and outerwear, key additional measurements include: armhole curve length measured along the seam line, bicep width, cuff opening, center back length, and across-back width. Jackets also require drop-shoulder measurements if the design calls for an extended shoulder line, and collar stand height for any structured collar design.

Grading rules specify how each dimension changes across the size run from XS through 3XL. A standard industry grade for streetwear T-shirts adds approximately two inches to chest width and one inch to body length per size increment. However, oversized streetwear silhouettes deviate from this standard, and the grading chart must explicitly state those deviations. Vainnx provides all OEM clients with a pre-built measurement template mapped to the exact silhouette of their range, removing the need to define grading logic from scratch.

Material Specifications: Fabric Composition, Weight, and Color Codes

The bill of materials, commonly called the BOM, lists every physical component that goes into the garment: shell fabric, lining fabric, interfacing, thread, zippers, buttons, drawcords, eyelets, labels, hang tags, and packaging. A missing BOM transfers material sourcing decisions to the factory, and when factories source independently, they choose based on availability and margin rather than your brand specification.

For each fabric entry, specify five data points as a minimum. First, the fiber composition by percentage, for example eighty percent cotton and twenty percent polyester. Second, the fabric weight in grams per square meter or ounces per square yard, which is arguably the most overlooked spec that causes the largest quality gap. A streetwear heavyweight tee typically targets 220 to 260 GSM, while a standard fashion tee lands around 160 to 180 GSM. If your tech pack says heavyweight but you do not lock in a GSM number, the factory may deliver something that feels right to them but thin to your customer. Third, the weave or knit type such as single jersey, French terry, fleece-back, or twill. Fourth, the Pantone color code for solid-colored fabrics. Fifth, any finish requirements including enzyme wash, silicone wash, pigment dye, or garment dye.

For trims and hardware, specify the exact material, finish, and color. A zipper entry should read YKK metal zipper, antique brass finish, number five gauge, and not just black zipper. Drawcords need diameter, material such as flat cotton or tubular polyester, tip finish, and length. The manufacturer needs every detail in writing because every detail becomes a billable decision made on your behalf when you leave it unspecified.

Construction Details: Stitch Types, Seam Allowances, and Reinforcement

Construction notes specify how the garment goes together at every seam, hem, and attachment point. A note that reads standard construction produces different results at every factory because what counts as standard varies by region, by factory equipment, and by the pricing tier of the production run.

Your tech pack should specify seam types using industry-standard terminology. For streetwear T-shirts, the body side seams typically use a four-thread overlock stitch with a seam allowance of three-eighths of an inch, while the bottom hem uses a double-needle coverstitch with a hem depth of three-quarters of an inch. For hoodies, the armhole seam must be specified as overlock plus topstitch, and the rib-to-body attachment requires a flatlock or coverstitch depending on the desired interior finish.

Stitch count per inch, abbreviated as SPI, is a critical quality control parameter. A standard SPI for medium-weight streetwear fabrics falls between ten and twelve stitches per inch. Drop below eight SPI and the seams are at risk of bursting under tension. Go above fourteen SPI and you risk fabric perforation. Thread color must be specified per seam, and for contrast topstitching that defines much of streetwear's visual language, the thread color and thickness are design decisions, not production defaults.

Reinforcement details are especially important for high-stress zones. Streetwear garments see heavy wear at the armhole-to-body junction, the pocket bag attachment, the fly opening on pants, and the crotch point. Bartack reinforcement at these stress points should be specified with exact length, width, and placement. A missing bartack spec on a hoodie pocket corner is the difference between a garment that survives fifty wash cycles and one that starts fraying after ten. Vainnx applies a standardized reinforcement protocol across all OEM production orders, mapping bartack positions, stitch density, and seam construction to each garment type, so brands submitting tech packs through Vainnx's system receive automated reinforcement suggestions based on the garment category.

Print and Embroidery Placement Specifications

Print and embellishment specs are where many streetwear tech packs fall apart. A screen print placement specified as center chest is not a specification. It describes a general area, not a set of precise coordinates. Every decoration on the garment needs a defined position measured from a fixed reference point, a defined size in inches or centimeters, and a defined technique with production parameters.

For screen printing, specify the placement measured from the center front neck seam down to the top of the print for chest hits, and from the center back neck seam for back prints. Include the print dimensions as width by height, the ink type whether plastisol, water-based, discharge, or puff ink, the number of colors, and the screen mesh count if a specific hand feel is required. Water-based and discharge inks produce a soft-hand print that absorbs into the fabric, while plastisol sits on top and delivers brighter color saturation. This is a creative decision with production consequences, and it belongs in the tech pack.

For embroidery, specify the placement coordinates, design dimensions, stitch count, thread brand and color codes, backing material type, and whether the embroidery requires a topping film for high-pile fabrics like French terry or fleece. Embroidery on heavyweight streetwear fleece without a water-soluble topping results in stitches that sink into the fabric nap and lose definition. A factory will not add this step unless the tech pack explicitly calls for it.

For heat transfers, puff prints, and specialty applications, the tech pack must specify pressure, temperature, and dwell time settings if your design requires a particular transfer quality. Vainnx maintains an in-house decoration facility with screen printing, embroidery, heat transfer, and direct-to-garment capabilities, which means brands working with Vainnx can consolidate garment manufacturing and decoration under one roof. This single-source approach reduces the risk of decoration defects caused by incompatible fabric-to-print combinations, because the production team validates compatibility before the run starts rather than discovering issues after garments arrive at a separate print shop.

Label and Packaging Specifications

Labels and packaging are the final production step and the first thing your customer sees. A garment that meets every manufacturing spec but arrives with a crooked neck label or inconsistent hang tag communicates poor quality control to the end consumer, regardless of how well the garment is made.

Your tech pack should include a dedicated section for label specifications covering at minimum the main neck label or screen-printed neck transfer, the care content label with fiber composition and washing instructions that comply with the destination market's labeling regulations, the size label, and any brand-specific hang tags or swing tags. For each label, specify dimensions, material type such as woven damask, satin, or screen-printed transfer, attachment method, and exact placement measured from a fixed reference seam.

Packaging specifications matter for brand presentation and logistics. Specify whether garments are individually poly-bagged, the poly bag material and thickness, folding method, and any insert materials like tissue paper, stickers, or brand cards. For brands shipping directly to consumers, packaging is part of the unboxing experience. For brands shipping to retail, packaging affects shelf presentation and stock handling. Either way, packaging is a spec that the factory executes, and the factory will default to the cheapest available option unless instructed otherwise.

Free Tech Pack Templates for Each Product Type

Building a tech pack from scratch for every new style is time-intensive, but it does not need to be. A well-structured template removes the friction of format decisions and lets you focus on product details. Vainnx provides OEM and ODM clients with production-ready tech pack templates for every core streetwear product category, including short-sleeve T-shirts, long-sleeve T-shirts, pullover hoodies, zip-up hoodies, crewneck sweatshirts, denim jeans, cargo pants, shorts, bomber jackets, and coach jackets.

Each template includes pre-drawn flat sketch outlines with callout markers, pre-populated point-of-measure tables with industry-standard grade rules, bill of materials templates with fields for every component category, construction specification checklists, decoration placement diagrams, and label and packaging spec tables. Templates are delivered as editable spreadsheets and vector files so your design team can modify them directly without starting from a blank page.

For brands at the sampling stage, Vainnx offers a complimentary tech pack review as part of the sampling process. Submit your existing specs, and the Vainnx production team cross-references them against the factory floor's actual capabilities, flagging missing measurements, tolerance conflicts, and construction details that may cause production issues. This review bridges the gap between what a designer envisions and what a production line actually delivers, and it costs nothing as part of the standard OEM sampling workflow.

What Happens When You Send a Factory a Complete Tech Pack

The return on a properly built tech pack is measurable. Sample revision rounds drop from three to five down to one or two. Production lead times shrink because the factory does not stop to clarify specifications. Per-unit cost stabilizes because the bill of materials locks material grades and quantities before sourcing begins. The final production run matches the approved sample with fewer deviation points, which means lower rejection rates at QC inspection.

For brands operating in the B2B wholesale model, a complete tech pack is also a sales asset. When a retail buyer evaluates your line sheet, the existence of documented production specifications signals that you are a serious operator, not a first-season experiment. Buyers place larger opening orders with brands that demonstrate production competence, because order fulfillment confidence is one of the strongest predictors of retail buyer behavior.

Vainnx has processed over five thousand OEM production orders across its manufacturing facility, and the data consistently shows that orders submitted with a complete tech pack ship with a first-pass QC acceptance rate roughly forty percent higher than orders submitted with partial specifications. The document that costs a few hours to build consistently returns weeks of saved production time and thousands of dollars in avoided rework.