Having the right under shirt for a ballistic vest is crucial for comfort and performance. The 5.11 Tight Crew Short Sleeve Shirt fits that need with its unique design and features. It is made out of our moisture-wicking, anti-microbial and quick-drying fabric. Our saddle-shoulder construction offers greater range of motion and an underarm mesh panel allows moisture to vent and evaporate easily. The tight crew short sleeve shirt has flat-lock seams that reduce friction in order to prevent chafing. The tight crew short sleeve shirt is designed to wear under body armor but is also great for casual and workout wear. Made of 82% polyester and 18% spandex, the 5.11 Tight Crew Short Sleeve Shirt is designed to last. You can always count of 5.11 Tactical Series to continually provide innovative, high quality products at a great price.