Get ready to experience superior stretch and performance by wearing the Under Armour HeatGear Authentics Shorty. Crafted from super-light HeatGear fabric that wicks away moisture to keep you cool, these stretch shorts are perfect for your hiking and HeatGear: For when it's hot. Wear it to keep you cool.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 matter what. De Updated gusset shape & ergonomic flatlock seams deliver a comfortable, chafe-free fit. Ultra-tight, compression fit. Soft, exposed elasticized waistband with contrasting brand detailing.