5 oz 100% cotton canvas. Mandarin collar for flash/fire protection. Armortex® anti-slip/anti-abrasion elbows. Removable neoprene elbow pads. Hidden document pockets and pen pockets. Bi-Swing shoulder. Front chest utility pockets with hook-and-loop closures. Chem-light pocket on left sleeve. Triple-stitching and 23 bartacks for strength. Velcro® closure cuffs. Hidden placket with melamine buttons.