Cut from a 4 way comfort stretch fabric, our Plythal Beanie 2.0 mid weight is ideal for hiking up steep mountains in bitter cold, or sitting motionless in a tree stand on a windy day. A micro fleece backer delivers warmth, while the windproof laminate panels block drafts from your dome and forehead. A four-way stretch, air-permeable fleece band warms the back of your neck and ears without impeding hearing.