Angelina Cotton No-Show Socks With Non-Slip Silicon Patch (12-Pack) Low cut for no-show look Silicon heel-grip to minimize slipping Women's fits shoe size 6-9.5 and men's fits shoe size 10-13 90% Cotton, 10% Spandex Machine wash, tumble dry low. Womens fits shoe size 6-9.5 Mens fits shoe size 10-13 Features a silicone heel grip to minimize slipping Available in mens one sizeand womens one size Low-cut for a no-show look