Our original HeatGear fabric is super-light, breathable & dries fast Stretch-mesh gusset & inseam panels deliver strategic ventilation Updated ergonomic design keeps seams off high abrasion areas & increases durability 4-way stretch material moves better in every direction Material wicks sweat & dries really fast Wider, 2" Engineered elastic waistband Product Description HeatGear Armour is our original performance baselayer—the one you put on first and take off last. So we made it extra comfortable by wicking sweat and stretching so you can move. No athlete can go without it. DNA Specs Fit & Care Our original HeatGear fabric is super-light, breathable & dries fast Stretch-mesh gusset & inseam panels deliver strategic ventilation Updated ergonomic design keeps seams off high abrasion areas & increases durability 4-way stretch material moves better in every direction Material wicks sweat & dries really fast Wider, 2" Engineered elastic waistband Style #: 1291328 Inseam: 21" Compression: Ultra-tight, second-skin fit.