Tough Duck Micro Mesh Short Sleeve Safety T-Shirt with Pocket. Wick away sweat while being compliant on the job site in this short sleeve micro mesh t-shirt. Shell: 100% Polyester 125 GSM Micro-Mesh with wicking treatment. Crew Neck. Comfortable fit and breathable. Wicking properties draw moisture away from the body, to keep you cool & dry as you work. Embellishment Friendly. Fluorescent CSA Class 2, Level 2; Fluorescent ANSI Type R, Class 2; Black CSA Class 1, Level 2; Black ANSI Type O, Class 1