Craft has created a performance base layer with the design of their new Zero Extreme Concept Piece. Two high-tech fabrics, ZERO and COOL are combined in one piece of apparel to provide warmth, air circulation and moisture transport. This base layer will hug your body without hindering your body movement, keep you warm and dry, all at the same time. The COOL fabric is used for “wing” panels around the shoulders and armpits, and at the cuffs to provide maximum cooling and moisture wicking. Flat lock seams mean the ZERO Extreme won’t chafe your skin and the fabric’s antimicrobial treatment prevents odor build-up. You can machine wash and dry this performance base layer.