Lofted lightweight neck warmer for cold weather, made from recycled plastic bottles. PrimaLoft® fleece keeps warmth in and sweat out. Stay cozy and dry in all your winter activities. PrimaLoft® Bio™ Fleece is biodegradable and is designed to return to nature. Elastic fabric that moves in all directions for improved comfort and freedom of movement. Made from 2 recycled plastic bottles. PrimaLoft Bio Fabric wicks sweat and moisture to exterior where it can evaporate or be absorbed by outer layers away from the head.