The Volcom V-Tech Polar Mock Neck is made from 100% polyester with lycra bound edges and Volcom Stone icon branding. Volcom V-Science Epidermis second layers offer additional temperature control to keep you comfortable on the mountain. Proper layering will make your time on snow an experience you want to revisit as soon as possible, so skip the cotton hoody and check out Volcom's Epidermis line.