Under Armour 9 Inch Core Pro Compression Running Shorts X Band - Enhances muscle performance by replicating the anatomy of the bodys core area. The fabric is light, ensuring comfort, and is ideal for both practice and off-field use. 4-Way Stretch - Provides freedom of movement, comfort, and durability. Signature Moisture Transport System - Wicks sweat away from the body to keep you dry during intense training. Fabric: Polyester / Elastane 9" Inseam