Fortress Base Pro 1/4 Zip Base Layer Top
Moisture-wicking fabrics, AERIS™ 250 insulation, polyester/spandex, 4-way stretch, 1-sided brushed polyester. Closest to skin. Wicks sweat, keeps dry, regulates temp. Antimicrobial agents fight odor. For use in all temps. Enhances comfort & performance in any weather.