Versatile and Stylish: The Women’s Hiking Skort You Can’t Live Without” UPF 50+ fabric blocks 97.5% of the sun's UV rays -- ten times more than a white cotton tee. In a quick-dry, breathable blend of 86% nylon and 14% spandex that resists abrasion. Added spandex allows for two-way vertical stretch for all-day comfort. Durable water-repellent finish is applied to the fabric so water simply rolls off. Machine wash and dry.