The running sweatshirt is made of a material that is lightweight, ultra-durable, stretchy, and made to dry quickly. The men's sweatshirt is made of double knit, which is soft, stretchy and breathable for excellent comfort and mobility. Water-resistant woven layer on the front for added durability and protection from the elements. Brushed fleece lining on the front of the body for added warmth without excessive bulk. The material wicks away sweat and dries quickly. UPF 50+ protects the skin from the sun's harmful rays. Bungee loop on inner and outer loop on sleeve to store hood when not in use. Built-in thumbholes help keep the sleeves in place. Odor control technology minimizes odor.