BUFF Original Multifunctional Headwear is engineered with a 4-Way, seamless, ULTRA STRETCH fabric construction that features UPF 50 protection and 100% recycled REPREVE Performance Microfiber. BUFF Original Multifunctional Headwear is approved and recommended by The Skin Cancer Foundation. Can be worn more than 12 different ways, from a cap to a balaclava to a hair tie, for a personalized style and perfect fit. . . . . . 100% recycled REPREVE Performance Microfiber. 4-way ULTRA-STRETCH. UPF 50 Sun protection. Recommended by The Skin Cancer Foundation. Multifunctional - 12+ ways to wear. 100% Seamless. Moisture-wicking, quick-drying, breathable. One-size-fits-most adults. Product Dimensions: (approx.) 20.5 (L) x 9 (W) inches. Weight: 1.2 ounces. 95% Polyester, 5% Elastane. Machine wash. Imported.