DuPont Yellow Tychem® 10000, 28 mil Encapsulated Level A Chemical Protective Suit With Flat Back And Front Entry Size:Large illuminated pads It also features a illuminated pads 2 zippered pockets and 1 back storage pocket Two exhaust valves release higher pressure inside encapsulating garments while simultaneously helping to prevent inward leakage of external vapors or particles into the garment One way valves are positive pressure and open on demand Valves include splash covers made of barrier material to help prevent liquid intrusion Valves are located on left back of head and right lower back (146) Class 2) 2022 edition