The Yukon range from Crocs provides comfort and versatility so that you can focus on the good things in life. The Yukon Vista II sandal's twin strap design gives the style a fashionable look as well as a high level of adjustability. These mules feature a slip-on fastening and an open toe. Uppers: 100% polyurethane. Lining: 100% textile. Cushioning: 100% EVA. Sole: 100% EVA.