Avery's Fleece TurtleHead Facemask neck warmer is waterproof, windproof and breathable. Avery's Fleece TurtleHead Facemask offers the wearer superior warmth around his neck while leaving him the option of wearing a hat or cap. The main body is constructed from laminated 10-ounce polyester fleece on the exterior and 7-ounce microfleece on the interior, and the hood top is made from stretchy Spandura nylon for a snug fit.