STRATA Camo Coldgear Themal Neck Gaiter is cut higher in the back so it wont slouch. Pull it up or down with this new bigger size, 21 inches unstretched. Polar series is the same weight and syle as the orginal UA Coldgear 4.0 . Manages your moisture with your breath as it wicks and dryes Qwikly. You can try rotating it and wearing it a couple ways. Trap warm, dry air while moving moisture away and help black the wind from coming in. High performance fabric is soft and stretchy and comfortable! Made in the USA. One size fits all well. Cut at 21" wide and very stretchy.