In functional activewear development, fabric is the cornerstone of wear experience and athletic performance. Three core materials—nylon, polyester, and spandex—make up over 90% of the “framework” of functional sportswear. Today, we’ll break down their properties and the best scenarios for each in different sports.
- Three Core Components of Functional Activewear Fabrics
Activewear fabrics rarely use a single material; they blend nylon, polyester, and spandex to balance functionality and comfort:
Nylon: Also known as “polyamide,” it’s the benchmark for strength and lightness;

Polyester: Commonly called “PET fiber,” it’s valued for durability and easy care;

Spandex: Often referred to as “Lycra,” it’s the key source of stretch in activewear.

- Performance Differences Between Fabrics
| Fabric | Moisture-Wicking | Stretch | Abrasion Resistance | Weight |
|---|---|---|---|---|
| Nylon | Medium (needs additives) | Low-Medium | High | Light |
| Polyester | Low (quick-dry versions require special treatment) | Low | Medium-High | Light |
| Spandex | Low | Extremely High (stretches 5-8x its original length) | Medium | Ultra-Light |
Note: Most activewear uses blended fabrics (e.g., polyester + spandex) to combine durability and stretch.
- Best Fabrics for Yoga, Running, Training & Tennis
Yoga: Opt for “nylon blend with 15%-20% spandex”—high stretch supports poses, and nylon’s lightness avoids restriction;
Running: Choose “quick-dry polyester + 5% spandex”—polyester wicks sweat fast, while minimal spandex ensures freedom of movement;
Training (Strength/HIIT): Go for “nylon + polyester + 10% spandex”—nylon resists friction, and the blend offers better support;
Tennis: Use “high-density polyester + 8% spandex”—polyester’s wrinkle resistance handles wide swings, and its durability stands up to court friction.
- How to Align Product Design with Fabrics Efficiently
Define core needs: Start with the sport scenario (e.g., “moisture-wicking for running”) to prioritize key fabric properties;
Reference blend ratios: For example, yoga wear needs at least 10% spandex to ensure sufficient stretch;
Use ready-stock fabrics for small orders: YOTEX’s regular fabric inventory covers basic nylon/polyester/spandex blends, supporting small orders 500 pieces to validate designs quickly.