KEEP COOL Heat won't stop you in this cooling ball cap with moisture management and UPF 50. - Omni-Freeze helps you feel cool and dry with accelerated wicking and next-to-skin comfort in moderate to hot conditions advanced cooling - Omni-Freeze Zero keeps you cool and dry with sweat-activated blue rings that absorb moisture and enhance evaporation for long-lasting comfort in hot conditions sweatband - Omni-Shade UPF 50 guards against skin damage using tight fabric construction and modified fibers to block UVA/UVB rays, so you stay protected in the sun - Omni-Wick keeps you dry and cool by pulling moisture to the fabrics surface to evaporate, delivering fast-drying, next-to skin comfort in the heat - Hook and loop back adjustment - Uses: Hiking, Water, Trail Running - Fabric: Omni-Freeze 145 GSM Jersey, 92% Polyester, 8% Elastane Columbia Coolhead II Ball Cap