DuPont Yellow Tychem® 10000 28 mil Encapsulated Level A Chemical Protective Suit (With Expanded Back And Rear Entry) Size:2X Large Designed for safety and comfort Designed for safety and comfort in any environment 3 point key lock Butyl gloves provide mechanical and physical 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)