Engineered to meet the needs of military service members, the 5.11 Tactical Rapid Ops Shirt can be worn as a standalone garment or under heavy winter apparel. This 1/4 zip shirt is made from 4.7oz poly/elastane material that wicks moisture away from the skin and prevents odor build-up. With zippered bicep pockets, reinforced elbows, and adjustable cuffs, this 5.11 shirt is ready for adventure.