Under Armour Women's Fly-by L/S Tee Machine Wash Soft, Breathable Fabrics - Sit agreeably against the skin. Signature Moisture Transport System - Wicks excess moisture away from the skin to encourage a cooler, drier and altogether more pleasant environment. Large, Open Hole Performance Mesh Panels - Positioned on the sides and rear for effective temperature regulation. Flatlock Princess Seams - Minimise chafing whilst lending the piece a distinctly feminine silhouette. Raglan Sleeves - Permit a full range of motion.