UK size guide
Under Armour Sports Bras Size Guide
Fit notes, product-level sizing signals, and review-backed guidance for buying Under Armour sports bras online.
Community fit data is growing. Based on brand sizing information and product specifications.
Short answer
Under Armour sports bras: what we know so far.
Runs true to size. HeatGear fabric is excellent for sweaty high-intensity activity. The Infinity High bra offers genuine encapsulation for D+ cup — rare in activewear. Rush Seamless provides energy-return compression for heavier training.
Watch out: Less fashion-forward aesthetic than UK-native brands. Rush range runs quite firm — size up if you prefer moderate compression over maximum.
Products in this guide
