The 5.11 MultiCam Rapid Assault Shirt features a specialized MultiCam color pattern that reduces visibility across the visual light spectrum, and is engineered with direct input from military and law enforcement personnel as an ideal base layer for tactical use. The ultimate tactical base layerDesigned for use with body armor, MultiCam reduces visual and IR signature, Body section is fitted poly/cotton/spandex, Dual fabric construction, Large storage pockets at each shoulder, Mesh panels for breathability, 1/4 zip front, Collar can be worn up or down, Sleeves are poly/cotton ripstop, Reinforced articulated elbows, Saddle-shoulder design for free movement, Seamless underarms eliminate chaffing, Flat lock seams throughout increase comfort,Imported