Under Armour Women's Size Guide
Under Armour Women's Size Guide
Fit Summary
Under Armour is a US performance activewear brand using US sizing as base standard for women’s tops. Women’s styles include compression base layers, quick-dry athletic tees, loose-fit training tops, fleece pullovers and lightweight workout camisoles, available in Compressive, Regular and Relaxed silhouettes. Regular-fit pieces generally run true to US sizing; signature compression heatgear styles are tight and body-hugging, while loose-fit training shirts and fleece layers offer extra room for movement. Compression stretch fabrics have high elasticity; woven technical shell materials carry minimal give. Fit varies widely between second-skin compression athletic tops and roomy relaxed training silhouettes. Shoppers selecting compression fitted styles are recommended to size up for a less tight fit.
Similar sizing reference: US activewear womenswear sizing; follows US active baseline, compression pieces fit more snugly than standard casual apparel.
Note: UK / EU / AU / CN‑Size marked "≈" are approximate conversions for reference only. This guide covers women’s tops only; bottoms, dresses and outerwear are not included. Actual garment fit depends on fabric and silhouette.
| Intl | US | UK ≈ | EU ≈ | AU ≈ | CN国标号型 ≈ | Bust(cm) | Bust(in) |
|---|---|---|---|---|---|---|---|
| XS | 0-2 | 4 | 34 | 6 | 155/80A | 83 | 32.7 |
| S | 4-6 | 6-8 | 36 | 8 | 160/84A | 88 | 34.6 |
| M | 8-10 | 10 | 38 | 10 | 165/88A | 94 | 37.0 |
| L | 12-14 | 12-14 | 40 | 12 | 170/92A | 102 | 40.2 |
| XL | 16 | 16 | 42 | 14 | 175/96A | 110 | 43.3 |
Last updated: Q3 2026 · Reviewed quarterly by SizeHub editor | Source: Under Armour official size guide reference
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