100% Microfiber Polyester fabric; MTF (Moisture Transfer Fibers) wicks moisture away to keep you dry, warm and comfortable; Antimicrobial treatment to inhibit bacteria growth; Anatomically designed shape with room to move; Flat seam construction reduces bulk and abrasion; Crew neckline with self-binding at trim; Relaxed fit; UPF 30+ Protection; Ideal for all winter sports; Women's Sizes: XS-XL