This station boot lives up to its name. The Responder features a rugged, smooth working side zipper and pull tab for easy on and off. Quad Comfort technology reduces foot fatigue and offers unmatched comfort. The longwearing Quad Comfort TPU outsole is oil and slip resistant. A polyurethane midsole offers support and an EVA footbed provides additional arch support and cushioning. Full-grain black leather can be polished and keeps you looking good even after a long night of no sleep.