Tychem® 4000 Coverall, Attached Hood and Sock, Elastic Wrists, Zipper, Storm Flap, White, 2X Large no checkout Contoured shape and soft foam Contoured shape and soft foam nose cushion for extra comfort Highest ASTM level of fluid resistance on the market (160mm Hg) Meets CDC guidelines for TB exposure control standards The Dura Mesh® shell heavy duty welding Made of 10% recycled fiber content Not suited for damp environments or overhead welding Effective protection against a range of chemicals Tychem® 4000 is chemical barrier film laminated to Tyvek® fabric Tychem® 4000 is white for high visibility Tychem® 4000 provides at least 30 minutes of protection against >120 chemical challenges Many different styles available