Wolverine® DuraShocks® comfort technology makes its name as "the world's most comfortable boots. Guaranteed." How? DuraShocks® lightweight dual-density construction weighs 1/3 as much as rubber, yet absorbs 4x's the force. Compression pads in the heel and forefoot compress and dissipate forces before they reach the feet and legs. And a closed-cell PU footbed retains its spring for an extended life cycle. Black Horse rubber/polyurethane sole also resists oil, chemicals, heat, and abrasion. Rubber midsole. Goodyear® welt. Western toe.