The Ariat Sierra is the all-weather boots that can take on anything. Thanks to the full grain waterproof leather and waterproof membrane construction, they offer top-of-the-line protection from rain, snow, and wet conditions. The most durable platform on the market combines with Ariat's secure, comfortable ATS™ stability system. This oil- and slip-resisting sole provides extreme heat (tested to 750°F/400°C) and abrasion resistance. Premium full-grain leather upper, Goodyear® Welt construction, ergonomic support and cushioning, this heavy-duty boot delivers.