WATERPROOF WADERS "STRONG" Model: WR02 STRONG The thigh waders have been produced with high quality PVC boots welded in. The boots have been tested for slip resistance on ceramic floor with sodium lauryl sulphate solution (NaLS) and on steel floor with glycerol - protection type OB FO E SRC. Thigh waders have been made on waterproof, very strong new generation rubber, non demanding any special treatment. It's a good protection against water. High frequency welding makes seams stronger.