Fear no impact, feel no fatigue. Sierra Shock Shield® helps you stay comfortable longer absorbing impact to your feet. Extremely durable, cushioned, and heat-resistant, it's ideal for harsh outdoor jobs, high heat environments, and intense construction work. Sierra Shock Shield Steel Toe Work Boot Product Features : Revolutionary Shock Shield™ diffuses heel strike impact for maximum shock absorption, Energy Max anti-fatigue insole provides cushioning and rebound for maximum comfort, Oil- and slip-resisting Duratread™ outsole for maximum wear resistance, High heat-resistant outsole, Goodyear welt construction for durability, Four-row stitch pattern with embroidery Men's Sierra Shock Shield Wide Square Toe Steel Work Boots in Black, Size: 7 D Medium by Ariat