The Ultimate Guide to Activewear Tech Packs: Everything You Need to Know

Look, if you’re in the activewear game—whether you’re running a fitness brand, owning a yoga studio, or stocking shelves as a retailer—you need a killer tech pack. It’s not just a fancy document; it’s the heartbeat of your production process. A solid tech pack turns your vision into leggings, sports bras, or performance tops that your customers will rave about. Mess it up, and you’re looking at costly delays, wonky fits, or products that don’t perform. So, let’s dive into how you can nail your activewear tech pack and make your brand stand out. This isn’t about throwing info at you—it’s my take on what works, based on what’s out there and what I’ve seen.

What’s a Tech Pack, and Why Should You Care?

A tech pack is your garment’s playbook. It’s the detailed guide you hand over to your manufacturer so they can bring your design to life without guesswork. Think of it like a recipe: miss an ingredient or skip a step, and your dish is a flop. According to the folks at Techpacker, a tech pack lays out everything—sketches, materials, measurements, colors, and how it all comes together. For activewear, it’s even more critical because your gear has to work—whether it’s wicking sweat during a HIIT session or stretching through a yoga flow.

You should care because a good tech pack saves you time, money, and headaches. It’s your insurance against miscommunication with your factory. Without one, you’re gambling with your brand’s reputation. Imagine launching a line of yoga pants only to find they’re see-through or rip during a downward dog. Yikes. A tech pack keeps everyone on the same page and your products on point.

Why Activewear Tech Packs Are a Different Beast

Activewear isn’t your average clothing. It’s not just about looking cute—it’s about performing under pressure. Your customers expect leggings that move with them, sports bras that stay put, and tops that keep them dry. That’s why your tech pack needs to go the extra mile. As Bryden Apparel points out, activewear fabrics need specific superpowers:

  • Moisture-wicking: To keep sweat at bay during intense workouts.

  • Breathability: So your customers don’t feel like they’re in a sauna.

  • Four-way stretch: For unrestricted movement in every direction.

  • Durability: Because nobody wants a sports bra that falls apart after three washes.

Your tech pack has to spell out these details like you’re explaining it to someone who’s never worn workout gear. For example, you might specify a fabric blend like 85% nylon and 15% spandex with a 250 gsm weight and a moisture-wicking finish. Don’t just say “stretchy fabric”—that’s a recipe for disaster. You also need to cover construction, like using flatlock seams to avoid chafing or reinforced stitching for high-stress areas. Activewear tech packs demand precision because your products have to deliver both style and function.

The Must-Have Pieces of Your Activewear Tech Pack

To create a tech pack that gets results, you’ve got to include all the right pieces. Miss one, and you’re asking for trouble. Based on what I’ve seen and what experts like FittDesign recommend, here’s what your tech pack should cover:

1. Visual Mock-Up

This is your design’s first impression. It’s a visual snapshot that shows what your garment looks like and how it works. Include front, back, and side views, and don’t skimp on the details—call out seams, zippers, or mesh panels. For activewear, highlight performance features like ventilation zones or reflective strips for nighttime runs. Think about adding notes on fabric textures or color schemes to set the vibe. A mock-up isn’t just pretty pictures; it’s your chance to show exactly what you’re going for.

2. Sizing Guide

Sizing is where things can go south fast. Your tech pack needs a clear sizing guide with measurements for every size in your range. Include a point of measurements (POM) chart that covers stuff like waistband width, inseam length, or chest circumference. Don’t forget grading rules—how measurements change from Small to Large, for example. For activewear, you’ve got to think about movement. Leggings need enough give in the crotch, and sports bras need to hug without squeezing. Test your sizes on real bodies to avoid returns.

3. Technical Drawings

These are the nitty-gritty sketches that manufacturers rely on. Use tools like Adobe Illustrator to create flat, black-and-white CAD drawings that show every detail—down to the exact placement of a logo or the width of a hem. For activewear, focus on fit-critical spots, like where the waistband sits or how the armholes are cut. Precision here prevents costly back-and-forth with your factory.

4. Spec Sheet

Your spec sheet is like a shopping list for your garment. It covers all the physical bits—fabrics, trims, zippers, you name it. Include real photos or swatches of materials and describe them clearly. For activewear, this is where you get specific about performance. Want a fabric with anti-bacterial properties? Say so. Need a zipper that won’t snag during a workout? Note it. 

5. Colorways Schedule

Colors are a big deal in activewear—your customers want options that pop. Create a table listing every colorway, complete with Pantone TCX codes, RGB values, and swatches. If you’re adding prints, include mock-ups of how they’ll look. Make sure your colors vibe with your brand and work in active settings—neon might be great for spin class but less so for yoga. Clarity here ensures your navy blue doesn’t turn out teal.

6. Tags, Labels, and Graphics

This is where your brand shines. Detail your care labels (washing instructions, country of origin), brand labels, and any printed graphics like logos or slogans. Specify where they go—inside the collar, on the leg, etc. For activewear, choose durable materials that can handle sweat and frequent washing. Nobody wants a scratchy label ruining their workout.

7. Bill of Materials (BOM)

The BOM is your master list of everything needed to make your garment. List fabrics, threads, elastics, and quantities, and if you’re working with specific suppliers, include their info. For activewear, be exact—say “80% polyester, 20% spandex, 220 gsm” instead of “soft fabric.” This keeps your manufacturer from guessing and ensures your product performs as promised.

Component

What to Include

Why It Matters for Activewear

Visual Mock-Up

Front, back, side views with design details

Shows performance features like mesh or reflective trim

Sizing Guide

Measurements and grading for all sizes

Ensures fit for dynamic movement

Technical Drawings

Flat CAD sketches with exact measurements

Prevents errors in fit-critical areas

Spec Sheet

Photos and descriptions of fabrics and trims

Specifies performance properties like UV protection

Colorways Schedule

Color names, Pantone codes, RGB values, swatches

Keeps colors consistent and brand-aligned

Tags, Labels, Graphics

Care labels, brand labels, graphic placement

Ensures durability for frequent use

Bill of Materials

Full list of materials with quantities and specs

Guarantees high-performance fabrics

How to Build a Tech Pack That Works

Creating a tech pack isn’t rocket science, but it takes effort to get it right. Here’s my step-by-step advice:

  1. Kick Off with Sketches: Start with flat sketches in Adobe Illustrator. Show front and back views, and add a style board with fabric swatches, prints, and notes. This sets the tone for your design.

  2. Nail Down Materials: Be specific about fabrics and trims. For example, “88% nylon, 12% spandex, 200 gsm, moisture-wicking finish.” Mention any special treatments, like anti-odor or quick-dry.

  3. Get Measurements Right: Pick a master size (like Medium) and define your size range. Create a POM chart and grading rules. Test fits on real people to ensure comfort during movement.

  4. Detail Construction: Spell out seam types (flatlock for comfort, overlock for durability) and assembly steps. Use diagrams for tricky spots, like gussets or reinforced stitching.

  5. Lock in Colors and Prints: Use Pantone codes and swatches to define colorways. Mock up any prints or patterns to avoid surprises.

  6. Add Branding and Packaging: Specify labels, tags, and packaging—like eco-friendly bags. Make sure branding is consistent and durable.

Tools You’ll Need:

  • Adobe Illustrator: For sketches and technical drawings.

  • Excel: To organize measurements, BOM, and color schedules.

  • Pantone Studio: For spot-on color coding (Pantone Studio).

Pro Tips:

  • Keep your language clear and consistent—avoid jargon that might confuse your manufacturer.

  • Use visuals like arrows or callouts to highlight key details.

  • Loop in your manufacturer early. Their feedback can catch issues before they become problems.

Mistakes to Dodge in Your Tech Pack

Even the pros slip up sometimes, and a bad tech pack can tank your production. Here are the big no-nos and how to steer clear:

  • Skimping on Details: Leaving out seam specs or fabric weights is asking for trouble. Fix it: Use a checklist to cover every component.

  • Messing Up Measurements: Wrong sizes or grading can lead to garments that don’t fit. Fix it: Double-check your POM chart and test samples.

  • Being Vague About Materials: Saying “stretchy fabric” won’t cut it. Fix it: Specify exact compositions, weights, and finishes.

  • Ignoring Performance Needs: Forgetting to mention moisture-wicking or stretch can ruin your product. Fix it: Prioritize activewear-specific features.

  • Poor Communication: Unclear instructions lead to revisions. Fix it: Schedule check-ins with your factory to clarify everything.

Wrapping It Up

If you want your activewear line to shine, a top-notch tech pack is non-negotiable. It’s your ticket to turning ideas into high-quality, functional garments that your customers will love. By packing in detailed sketches, precise material specs, and crystal-clear construction notes, you’ll cut down on errors, save cash, and get your products to market faster. Whether you’re a fitness brand, yoga studio, or retailer, a solid tech pack sets you up to compete in the crowded activewear space. Ready to make it happen? Reach out to our team for custom tech pack creation and manufacturing support that’ll take your brand to the next level.

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