5.11 Men's Rapid Assault Shirt 100% Other Fibers Imported The ultimate tactical base layer, 1/4 zip front, collar can be worn up or down; designed for Use with body Armor Dual fabric construction; body Section is fitted poly/cotton/spandex, sleeves are poly/cotton ripstop Saddle-shoulder design for free movement, seamless underarms eliminate chaffing, reinforced articulated elbows Flat lock seams throughout increase comfort, mesh panels for breathability Large storage pockets at each shoulder