Fit & sizing
Sportswear Sizing by Market: Start With Measurements
A size label is only a shorthand. Fit decisions are easier to discuss when the label is connected to the measurements, garment, and customer it represents.
When you source sportswear for different countries, begin with the customer’s measurement chart and your own fit intent. A US, UK, or EU label can help organize a range, but brand and product differences mean labels are not reliable one-to-one conversions.
Use market labels as references
These are planning reminders, not a conversion chart or a universal size standard.
| Topic | Starting reference | What to confirm in your brief |
|---|---|---|
| United States | Lettered ranges and category-specific numeric labels are both used. | Attach the exact brand or buyer chart; note units and whether values describe the body or finished garment. |
| United Kingdom | UK-labelled ranges can differ from US and EU labels by brand and garment category. | Use the chart expected by your UK customer and confirm each garment measurement instead of converting the label alone. |
| European Union | Numeric labels vary across brands, product types, and destination requirements. | Identify the destination and provide the size chart your buyer uses; include measurements in centimetres or inches with the units stated. |
Build a useful sportswear size chart
Separate body measurements from finished-garment measurements. A body chart describes the person wearing the garment. A finished-garment chart describes the product laid flat or measured as made. Mixing them can make a correct pattern look wrong on paper.
Include these fit references
- Product type and intended wearer, such as adult, youth, men’s, women’s, or unisex.
- Measurement points for the product: chest or bust, waist, hip, inseam, rise, sleeve, or body length as relevant.
- Units for every measurement and a tolerance for how much a finished measurement may vary.
- Fit intent such as close, regular, or relaxed, with notes for stretch and layering where relevant.
- A size breakdown by style and any grading rules your buyer already uses.
Review the chart with the specific garment
A compression tight, training short, basketball jersey, and warm-up layer each sit differently on the body. Make the chart specific to the fabric, stretch, cut, and use. When more than one market is involved, list the destination charts separately and record which version applies to each style.