Our best-selling Ferrosi fabric is so strong stretchy breathable and comfortable it made perfect sense to apply its renowned superpowers to our legacy of protective gaiters. The Ferrosi Thru Gaiters earned its name for its incredibly light weight that's perfect for ounce-counting backpackers and fits trail runners and low profile hiking boots in keeping with the ultralight ethos of thru-hikers. A shoelace hook and drawcord cinch at its top hem ensures a snug fit that keeps debris out of your footwear and a replaceable instep strap makes gear fixes on the go a breeze.. . Note: These gaiters are designed to be put on before you put your shoe on. Pull the gaiter over your sock above your ankle make sure the shoelace hook is facing towards your toes and adjust the fit once both shoes and gaiter are on.. . bluesign approved 86% Nylon 14% Spandex 90D Stretch Woven Ripstop. . Water Resistant. Wind Resistant. Movement-Mirroring Stretch. Breathable. Lightweight. Abrasion Resistant. Quick Drying. UPF 50+. . Shoelace Hook. Drawcord Cinch at Top Hem. Replaceable Hypalon Instep Strap