A premium undershirt engineered for the rigors and duties of law enforcement, EMS and fire professionals, and tactical operators worldwide. Designed for maximum movement, Enhanced durability and comfort, Works as a base-layer or stand-alone shirt, 4.5 oz. ringspun cotton fabric, Available short-sleeve and long-sleeve, Crew neck, 1 no-roll high-density collar, Tapered shoulder design, Extended length, Double-stitching, Tagless label, Moisture-wicking, Accepts embroidery and silk-screening, Imported.