ST31 2 ST31 2 Short Sleeve Cooling T Shirt Black Work Wear comfortable foam sealed design keeps out M13P LB XL comfortable foam sealed design keeps out dust & airborne particles Flexible co injected temples provide a secure fit Non slip rubber nose pads provide a comfortable fit FogLess® 3Sixty™ enhanced hydrophobic action resists lens fogging and provides clear vision in extreme working conditions 9 Base curve lens Meets ANSI Z87 A6 CUT LINER The Arctic Radwear® ST31 2 short sleeve cooling t shirt uses Max Dri™ Technology treated with RadCool® resulting in revolutionary temperature management that uses perspiration to keep you cool & dry The t shirt moves moisture away from the skin and circulates it through the fabric keeping you cooler longer