The Black Diamond Men's Warbonnet Tee is a Tech tee for hot, sweaty climbs. The polyester stretch-slub jersey knit fabric wicks moisture and dries fast with polyester stretch-knit mesh at the underarms to keep things even cooler. A regular Fit and anti-chafe keeps you comfortable through the hours. Features of the Black Diamond Men's Warbonnet Tee Quick-dry, moisture-wicking fabric Mesh fabric in High-perspiration Areas Anti-chafe, ergonomic seams