Tough, lightweight HeatGear fabric, with all the performance benefits of UA Compression Stretch-mesh gusset & inseam panels deliver strategic ventilation Updated ergonomic design keeps seams off high abrasion areas & increases durability 4-way stretch construction moves better in every direction Material wicks sweat & dries really fast Under Armour Men's HeatGear Armour 2.0 Leggings, Black (001)/Graphite, Small