Features sweat-wicking fabric and a scuba-style hood for comfortable coverage in the gym or on the road. Standard fit for a relaxed look and feel. This product is made with 100% recycled polyester fibers. The Nike Relentless jacket features sweat-wicking fabric and a scuba-style hood for comfortable coverage in the gym or on the road. This design has just the right amount of weight while being 20% heavier than the Nike Epic jacket. This product is made with 100% recycled polyester fibers.