The Bi-Ply uses a two layer knit that traps air between the layers to keep in body heat in and disperse moisture away from the skin. It has added moisture management and lightly sanded the polyester yarns for added warmth and comfort.
- Flat seam construction to reduce bulk and skin abrasion
- Sleek performance-friendly rubber tip zipper
- Half-length zipper with zip-through collar with interior wind flap