Description of La Sportiva Sandstone GTX-XCR - Women's Versatile low cut light hiker for day hikes and multisport use. Low cut version of the Onix designed for everyday use and multisport crosstraining. Waterproof and comfortable with an exceptional fit. Built for abuse! Features: Gusseted tongue provides a comfortable fit while keeping debris out Gore-Tex(r) XCR (r) lining for waterproof performance Impact Brake System(tm) outsole