Salisbury has the exclusive Dielectric ANSI Z41 Footwear and ASTM F1117 Dielectric Footwear. All Dielectric ANSI Z41 Footwear: • 100% Waterproof • Super Dielectric tested to 20,000 volts • Dielectric tested to 14,000 volts • Premium grade ozone resistant rubber. • Nonmetallic buckle hardware All ASTM F1117 Dielectric Footwear: • All overshoes conform with ASTM F1117 "Standard Specification for Dielectric Overshoe Footwear" and are tested to ASTM F1116 @ 20kV. • Premium grade ozone resistant rubber. • 100% waterproof • Nonskid Bar Tread outsole • Nonmetallic buckle hardware • Made in U.S.A. • Nonmetallic buckle hardware Accessories include: • Puncture-Resistant Midsole • Poliyou® Air Insole • 3/8” Felt Insole • Rubber Patch Kit • Aquaseal® Boot Repair