The Under Armour Vital warm-up pants are breathable, lightweight, and wick moisture.. . . . . . . 100% polyester. Lightweight . Mesh lining provides enhanced breathability and comfort. Moisture Transport System wicks moisture for dry comfort. Elastic waistband with an internal drawcord. Mesh side pockets. 8 in. leg zipper for easy on-off wear. Inseam: 32 in.. UA Style: 1239481.