Women's Apparel Sizing Guide
Confluence Running Sizing Guide
Measure the body—not the tag.
Women's running apparel may use numeric, alpha or brand-specific sizing. Fresh body measurements are a better starting point than assuming the same labeled size fits identically across brands.
How to measure
Keep the measuring tape close to the body without pulling it tight enough to compress the area being measured.
Choose based on the garment
Tops and jackets: bust/chest measurement is often the most important starting point.
Tights, shorts and pants: compare waist and hip measurements first.
Fitted or compressive pieces: use the product-specific guidance because stretch and intended compression can materially change how a size feels.
If you are between sizes
Consider the fit you want and the job the garment needs to do. A looser training top may work better in the larger size, while a technical garment designed to sit close to the body may perform best according to the manufacturer's intended fit. If your measurements fall into different sizes, prioritize the measurement most important to that garment and its function.
Brand-specific sizing matters
Some brands use distinctive systems or fit profiles. Oiselle, for example, currently uses a mix of numeric, extended and alpha sizing depending on the style. Use our Oiselle Size Guide or browse all Brand Size Guides when generic sizing is not enough.
Ready to shop?
Use the guide as your starting point, then check the fit notes on the individual product.
Follow the Journey
