The most high-tech, hardest charging wader ever created, Simms’ G4Z Stockingfoot Wader brings waterproof breathability, rugged durability, and unmatched comfort to new heights. Made in Bozeman, MT, the new G4Z features a rugged 4-layer lower and 3-layer upper GORE-TEX Pro Shell (respective) fabric. Additional new features include compression-molded stockingfeet, higher pile fleece in two handwarmer pockets, an internal submersible zippered pocket, improved fit, and greatly enhanced suspenders.