Buff Polar Neckwear Solid Black. PrimaLoft Bio Fleece is fully biodegradable and is designed to return to nature. Flip it twist it fold it. 4-way stretch means you can wear it as a neck warmer hat balaclava and more to keep you warm when the temperature drops. Specifications for Buff Polar Neckwear: Manufacturer: Buff Application: Winter Fabric/Material: 97percent Recycled Polyester 3percent Elastane Seasonal/Temperature Use: Fall Winter Features of Buff Polar Neckwear PrimaLoft Bio Elastic fabric that moves in all directions for improved comfort and freedom of movement. UPF 50 certified sun protection against ultraviolet (UV) radiation produced by the sun. Samples of fabrics tested for UV protection in accordance with the international standards. Package Contents: Buff Polar Neckwear Buff 130003.999.10.00: Polar Neckwear Solid Black