BUFF Polar Multifunctional Headwear has been engineered with a 4-Way, seamless, ULTRA STRETCH fabric construction, that features UPF 50 protection,100% recycled REPREVE Performance Microfiber, and PrimaLoft fleece. 4-way stretch. PrimaLoft fleece. UPF 50 Sun protection. 100% recycled REPREVE Performance Microfiber. Multifunctional - 10+ ways to wear. Moisture-wicking, quick-drying, breathable. One-size-fits-most adults. Product Dimensions: (approx.) 29.5 (L) x 9.5 (W) inches. Weight: 2.3 ounces. Upper: 95% REPREVE Polyester made from recycled water bottles, 5% Elastane. Lower: PrimaLoft Fleece; 85% Recycled Polyester, 15% Polyester . Machine wash. Imported.