Our selection of men's base layers are everything you could ask for and more. With thoughtfully designed moisture-wicking technology, our base layers allow full flexibility and comfort whatever the workout. Cardio or strength-training. Outdoor running or lifting. With a seamless knit and form flattering designs, our men's base layers are designed with you in mind. Wear underneath a sweater or hoodie for extra warmth, and swap for a stringer and shorts in the summer.