Gravis Catalina Skate Shoes are hip and stylish. The sneakers have an adjustable strap at the toe, a deep open top that looks racy and a superior suede upper. The tape is vulcanized (weatherproofed to survive extreme temperatures) leather and the rubber out sole is formed from gum rubber. Gum rubber is natural rubber that is derived from the rubber tree. These shoes are also fashioned with a soft lining for plenty of comfort underfoot, plus, the mid sole affords an EVA cushioning for keeping plenty of spring in your step. At the back heel of the shoe you find a logo placed on the heel's (heels') outermost side(s). The adjustable strap sports a button as well as a buckle. Plenty of stitching throughout is a sign of a quality shoe. You will love this shoe.