Men's UA Flex Pants Bottoms by Under Armour Large Black by Under Armour. $33.99. Lightweight, textured mesh fabric breathes for superior airflow. Signature Moisture Transport System wicks sweat away from the body. Covered elastic waistband with internal drawcord provides a secure, comfortable fit. Mesh hand pockets. Inseam length: Size LG 32" (+/- 0.5" per size). Polyester. Imported.