Finn Comfort Men's York Lace-up 100% Leather Rubber sole Leather upper and lining offer a soft, comfortable foot environment. Cork and latex rubber insole molds to your foot over the first few days, providing a customized fit Removable insole can be replaced with your own custom orthotic. Polyurethane outsole easily flexes with your foot, while a shock-absorbing heel cup helps reduce foot fatigue.