Gore Bike Wear's Power 2. 0 Singlet is built to handle the heat so you stay comfortable on those scorching summer rides. The Power 2. 0 Singlet is made with a propriety blend of polyester and elastane, and it's designed to manage moisture so you stay dry. Gore uses mesh panels along the underarm for added breathability, and the full length let's you dump heat on the fly. The singlet offers a sleek, form fit and uses flatlock seams to eliminate irritation. Gore also includes three rear pockets for all your ride essentials.