Probably the world&';s best selling thermal undergarment is now available in a simple one piece option. Featuring the innovative two layer technology pioneered by fourth element, the One Piece Arctic provides a simple solution to the challenges of thermal protection. Elasticated waist band for extra comfort Low, front zip for easy donning High recycled content: Outer: 80% Recycled Polyester. Inner: Fleece 100% recycled polyester Contemporary flexible, metallic branding Hand Warmer Pockets High wicking Low bulk, high insulation Pee-valve ready Thumb loops and foot stirrups to aid donning Single layered lower legs reducing bulk around the ankles Fabric & Care OUTER: 80% Recycled Polyester, 17% Nylon, 3% Elastane.INNER: 100% recycled polyester Care Instructions:Machine Wash Separately at 30AdegLine dryDo not use bleachDo not tumble dryDo not ironDo not use fabric softeners