BUFF® UTMB® Collection: The Mont Blanc toughest race demands the best of its participating athletes! Take your performance to its highest level and feel the power of the best trail runners in the world with BUFF® UTMB® Collection. Never give up on reaching your goals! CoolNet UV® Headband UTMB® 2024: Comfortable product with an optimal fit and fusion joined fabrics to prevent skin irritation. Ideal for an all-year-round use: efficient forehead perspiration absorption during high-intensity summer activities like running and trail running, and ear protection against the cold while downhill and cross-country skiing. Meet our newest recycled CoolNet UV® fabric. 95% recycled polyester microfiber, its moisture management properties pull sweat away from your skin and into our evaporative cooling fabric design so you stay cool, light and comfortable. UPF 50+ fabrication prevents hazardous exposure to the sun while delivering 4-way ULTRA stretch weave and 100% seamless design for the perfect fit.