Rocky Men's Waders features light and flexible cement construction, 1000 grams of 3M thinsulate insulation, articulated knees and gusseted crotch for enhanced mobility, neoprene and rubber upper, 5 millimeter waterproof neoprene with double reinforced padded rubberized knee guards, energyBed footbed featuring memory foam and retraction outsole. Material: Neoprene, Rubber.