Snake Gaiters Snake Protective Legwear Field-tested and proven to provide excellent protection from snake bites, these punctureproof gaiters are a must when working snake country. Built of 900-denier polyester oxford material with PVC finish. Gaiters protect to the knee and come in regular or large sizes. Specially contoured to fit over boots. Calf sizes: Regular (fits up to 18″ calf), Large (fits 18″ to 21″ calf).