The unique Polar BUFF® neckwear is made by adding cozy Primaloft® fleece to the Original Eco Stretch BUFF® neckwear. Designed for outdoor activities, it maintains body temperature in cold weather conditions. Ideal for hiking & snow sports such as cross-country skiing, downhill skiing & snowboarding. Features Fleece material keeps you warm, is extremely soft & comfortable to the touch. Designed for protection & comfort. This product contains 2 recycled plastic bottles. It s not a trick, it s called sustainability! Ultra Stretch technology: highly stretchable product for maximum comfort & performance. Efficient, fast moisture wicking. Ideal for high-intensity activities. UFP50+ certified sun protection against ultraviolet rays (UV) produced by the sun. The textile samples are tested for UV protection according to international standards.