Simms’ guide-inspired, anatomically-cut Windbloc® Neck Gaiter. Key ingredients include Polartec® Windbloc with four-way stretch, and a hard face that sheds the cold and wet conditions. Interior grid-fleece lining feels plush against the face while TPU-reinforced, laser-cut holes will keep you breathing easy. The Cohaesive™ cord-lock system operates with simple, one-handed adjustments at the back of the neck. 100% windproof. One size fits most. Nylon. Imported.