Five Supercrease military-style creases 5.8oz 65/35 poly/cotton mini rip-stop stretch fabric Concealed zipper front closure The Class B shirt brings the traditional professional look of a daily duty uniform with added comfort for lasting wear. This shirt takes stretch and comfort to a new level and regulates your body temperature while widening your range of motion. Shirt is made of 5.8oz 65/35 poly/cotton mini rip-stop stretch fabric for maximum mobility.