The Kelmarsh Shortie makes wet days more bearable with its practical functionality and fashionable silhouette. Easy to put on when you're heading out into the garden, walking the dog or at the market with friends. Upper part of vulcanized rubber with neoprene, 100% rubber. 4LR™ technology provides lightweight support and stability, durable rubber and removable cushioning insole The Duratread™ sole is extremely durable.