Rockport Umbwe Trail Leather Boots Rockport Umbwe Trail Boot The Umbwe Trail is part of Rockports heritage. This classic boot has Hydroshield waterproof technology, Vibram outsole & EVA footbed for added comfort. Hydroshield Waterproof Technology keeps feet completely dry Vibram Rubber outsole gives durable grip on a variety of surfaces Rockport was the first to engineer performance walking comfort in casual & dress shoes.