The red classic mock neck zip front down vest has lightweight 800-fill insulation using high-tech Sustans fiber made from DuPont® Sonora fibers. Sustans® is currently the only bio-based technologically advanced material that can hold in heat. The Yamaha L4 Puff Vest has two zippered lower pockets and a zip chest pocket. Comfortable synthetic fur lines the inside of collar and pockets for added warmth and comfort. Yamaha logo is featured on the left chest with an additional TLD logo on the back.