Built for Ultimate Sun Protection - BUFF Junior CoolNet UV+ Multifunctional Headwear is 95% recycled - engineered with REPREVE performance microfiber, HeiQ cooling technology and has a 4-Way, seamless, ULTRA STRETCH fabric construction that features UPF 50+ sun protection. Fits kids ages 6 to 11. BUFF Junior CoolNet UV+ Multifunctional Headwear is approved and recommended by The Skin Cancer Foundation and can be worn 12 different ways - from beanie to balaclava, face cover to headband.