Featuring a built-in intelligent cooling system that works with your body temperature, this premium lightweight baselayer is ideal for outdoor work like construction, gardening and farming. It's also a smart choice for hiking or camping. Rebar Evolution 12 Zip Top Product Features : 0 : Greater Arm Mobility™ for freedom of movementMoisture Movement Technology™ wicks away moisture from skinClimateTEK™ for dynamic and temperature regulated coolingFreshTEK™ sustainable odor-resistance, 1 : 12 zip placket, 2 : Additional pocket welt Women's Rebar Evolution 12 Zip Top in Grape Kiss, Size: Large by Ariat