Designed to help keep you cool and comfy, our Sea Tea helps wick sweat and reduce odor thanks to a unique natural blend of eucalyptus tree fiber, ZQ Merino wool and chitosan (an odor-reducing fiber responsibly extracted from snow crab shells). Product Features Best For: Everyday wear, hiking, pre or post workouts. Fit: Classic fit, Crewneck Body: 65% Tencel™ Lyocell, 30% Merino Wool, 5% Chitosan. Trim: 63% Tencel™ Lyocell, 29% Merino Wool, 5% Chitosan, 3% Elastane