Polarmax Women's Micro H2 Zip Mock is a high-performance ultra-soft, lightweight, dual-layer zip mock constructed with highly advanced Acclimate Dry & Acclimate Fresh technology that will deliver superior moisture wicking/quick drying & anti-odor/anti-microbial properties designed to keep you warm, dry, and odor free by pulling moisture away from the body to the outer surface of the fabric to achieve rapid evaporation while killing odor-producing bacteria! Clean Seam sewing reduces irritations and relaxed fitting design improves comfort without hindering mobility! Guaranteed to provide longer performance, regardless of the conditions, make Polarmax your Layers for Life! Made in the USA!-Weight with flat seam construction for ultimate comfort. 100% Acclimate Dry Polyester. Moisture Wicking. Breathable. Quick Drying. Anti-Microbial/anti-odor protection. Relaxed Fit that feels like cotton. Machine Wash and Dry. NO Shrinking! 100% Made in the USA!!!Core 3.0 Crew (3P12Y/3P32V) is a high-performance Crew baselayer that provides unrestricted range of motion and advanced Acclimate Dry technology to deliver superior moisture wicking and quick drying to keep you warm, dry, and comfortable. Performance, regardless of the conditions! Clean Seam sewing reduces irritations and improves comfort! Polarmaxs proprietary Acclimate Fresh anti-microbial keeps you odor free even when youre perspiring all day! Polarmax really are your go to Layers for Life!