Amazon.com | KEEN Men。The Keen Clearwater CNX Sandals are authentic men\'s water sports sandals in size US12, featuring a contour arch design for optimal comfort and support during outdoor activities. With a slip-on style and pull-on closure, these black sandals are perfect for activewear or casual occasions. Made with waterproof polyester upper material and cushioned outsole, they are slip-resistant and offer arch support for all-day wear. Designed for performance and comfort, these KEEN sandals are the perfect choice for summer, fall, and spring adventures.