Thermo-Regulating, Breathable Fleece For Muiti-Sport Cool Weather Activities The Trail Mix Cap utilizes bluesign® approved materials to create a versatile and breathable cool weather headwear piece that's ideal for nordic skiing, trail running, or chilly morning dog walks. The ActiveTemp™ treatment manages body temperature when the pace quickens, while UPF 30 and classic brim styling protects skin from the sun's UV rays. Constructed with customer-favorite Trail Mix materials, the Trail Mix Cap is the perfect addition to an activewear outdoor wardrobe.