Muck boots muck boot humber steel toe the humber features a steel toe cap is 100 waterproof with a durable lightweight sole with a seamless quick clean rubber overlay coupled with a reinforced toe and heel makes this a tough but durable all round use wellington fasteningslip on material compositionneoprene breathable airmesh rubbercare instructions 5mm cr flex foam bootie with four way stretch nylon seamless quick clean rubber overlay additional achilles reinforcement for added p