Altra Trail Gaiter Protective Shoe Covers 82% nylon, 18% spandex Pull On closure Synthetic sole Shieldsyour feet from dirt, sand, mud, rocks and snow. Straplessdesign allows you to change your shoes and socks without removing the gaiter. Compatiblewith all Altra trail shoes. Highlybreathable stretch material with high abrasion resistance. Weight:1.3 ounces