Tychem® 4000 Coverall, Bound Seams, Attached Hood, Elastic Wrist and Ankles, Zipper Front, Storm Flap, White, X Large no checkout Durable nylon frame with 5 Durable nylon frame with 5 position ratcheting temple design for optimum fit Non slip TPR temples for comfort and grip Over the glass designed to fit over prescription eyewear solvent resistant seal that will not tear or decay Parts disassemble easily even after extended service Reduces inventory costs – no need for large inventory of cut gaskets 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