Size Charts

Activewear Size Chart Guide for Brands & Buyers

This guide helps activewear brands, buyers, and private-label sellers master the technical aspects of sizing. Learn to navigate measurement points, fit ranges, grading, and sampling to ensure professional size chart preparation before moving into production.

Common Size Chart Mistakes to Avoid

When creating an activewear size chart, avoid copying generic charts. Common errors include ignoring fabric stretch, failing to test real samples, mixing body vs. garment measurements, and not defining manufacturing tolerances. Correcting these ensures professional production results.

Activewear Size Chart FAQ

1. Should I use body or garment measurements? Always specify body measurements for customers and garment measurements for production. 2. How does fabric stretch affect sizing? High-stretch fabrics like spandex require smaller garment dimensions (negative ease). 3. What is a standard tolerance? Usually +/- 1cm for critical points. 4. How many sizes should I offer? Start with a core range (S-XL) before expanding. 5. Why do samples fit differently than the chart? Ensure the sample fabric matches bulk production stretch rates.

Ready to Build Your Collection?

Now that you have mastered the activewear size chart, continue your journey by exploring our Fabric Guides, Tech Pack Templates, or learn more about our Custom Activewear services to bring your designs to life.

Shorts & Skirts Size Guidance

Why Activewear Size Charts Matter

An accurate activewear size chart is essential for reducing return rates and maintaining fit consistency across production batches. It serves as a technical benchmark for sample approval and streamlines communication with manufacturers, ensuring your design intent is executed perfectly.

Key Body Measurements for Activewear

To build a comprehensive activewear size chart, you must include: bust, under bust, waist, hip, inseam, front rise, back rise, thigh, and total length. These data points allow for precise pattern grading and a superior fit for the end-user.

Leggings Size Chart Guidance

Professional leggings development requires focus on waistband fit, hip stretch, and inseam length. Your activewear size chart should also account for compression levels, fabric recovery, and results from squat-proof testing to ensure transparency and quality.

Sports Bra Size Chart Guidance

Developing a sports bra activewear size chart requires precise data on bust and under-bust measurements. Key technical factors include cup coverage, band support, and strap placement. Brands must also define compression levels and categorize products by low, medium, or high-impact use to guide buyers effectively.

Tops, Tanks & Jackets Size Guidance

For upper-body garments, an activewear size chart should specify chest, shoulder width, and sleeve length. It is critical to account for total garment length and the fabric’s stretch allowance to ensure the fit remains functional during high-intensity movement.