About Activewear Specs

Activewear Specs is a practical resource hub for activewear sizing, fabric GSM, tech packs, production specifications, and custom sportswear planning. We provide the technical data needed for high-quality production. ### Who We Help – Activewear startups – Yoga wear brands – Sportswear buyers – Private-label sellers – Sourcing teams – Apparel manufacturers and merchandisers ### What We Cover – Activewear size charts – Fabric GSM and material selection – Tech pack templates – Measurement spec sheets – Custom activewear planning – Sampling and production checklists ### Why It Matters Clear specifications help reduce sampling mistakes, improve factory communication, control fit consistency, and prepare projects for bulk production. Proper technical planning is the foundation of every successful activewear brand.

Size Charts

Detailed guides to help you find the perfect activewear fit every time.

Fabric Guides

Clear explanations of fabric types and their best uses in activewear.

Custom Production

Step-by-step advice for creating your own sportswear line with confidence.

Get Started

Explore our guides and templates to streamline your activewear production.