Slip into a solid wall of extreme-weather protection with Simms contoured, ear and neck covering Guide Windbloc® Beanie. Polartec® Windbloc tech, with 4-way stretch, is a fortress against the elements, acting like a shell to help maintain core comfort. When conditions howl, the Cohaesive™ cord-lock system battens down the hatches with simple, one-handed adjustments. Finally, an interior grid-fleece crown with high-loft fleece over ears rounds out this built for an Arctic-blast beanie. One size fits most.