The Groundbreaker 6” H2O is a sturdy and comfortable work boot designed for the long haul. Conforms to ISO20345 Safety Footwear Standard S3 SRC Safety Rating Steel toe protection tested to 200 joules impact Safety footwear leather upper plus antistatic and energy absorbing heel Penetration resistant sole Heat resistant outsole, resistant to high heat up to 300° C Oil- and slip-resisting Duratread™ outsole provides maximum wear resistance Tested on ceramic tile floor with SLS and on steel floor with glycerol Waterproof Pro™ technology 4LR™ technology offers support and cushioning for everyday wear Ariat P13621 Groundbreaker 6" Lace Steel Toe Waterproof Work Boot