Under Armour Women's Streaker Short Sleeve Tee 100% Polyester Unique Hybrid Stripe Construction - Delivers amazing breathability and comfort. Signature Moisture Transport System - Wicks sweat to keep you dry and light. Lightweight, 4-way Stretch Construction - Improves mobility and maintains shape. Ergonomic flatlock seams - Allow you to move free without fear of chafing. Shaped Hem - Delivers enhanced coverage without looking big and bulky.