HeatGear® 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 matter what.FEATURES:-Super-light HeatGear® fabric delivers superior coverage without weighing you down.-Material wicks sweat & dries really fast.-4-way stretch material moves better in every direction.-Ergonomic flatlock seams deliver a comfortable, chafe-free fit.-High-rise UA No-Slip Waistband for optimal coverage & support that stays put with every move you make.-Side drop-in pocket.Fabric:- Knit.