Under Armour Fly-By Women's Compression Capri Running Tights Compression Fit - Increases muscle power and reduces recovery time. Moisture Transportation - Removes moisture from the skin to keep you cool, dry and comfortable. 4 Way Stretch - Dries faster and improves motion range. Flatlock Seams - Ergonomically flatlocked to give a superior fit and reduce chafing. Zip Pocket - To keep all those required items safe and to hand.