The Loose Fit Crew Shirt from 5.11 Tactical is built from ruggedized polyester to provide maximum durability and rip resistance in any environment. A saddle-shoulder design ensures full mobility during periods of high activity, and flat-locked seams offer added comfort and wearability. Built from odor control, moisture wicking, quick drying fabric, the Loose Crew incorporates mesh vents under each arm to ensure maximum ventilation, keeping you cool, comfortable, and in control all day long. A loose fit provides complete freedom of movement without sacrificing comfort or performance. Material: Polyester, Spandex.