Our most breathable gaiter using GORE-TEX; XCR; in the upper. Durability is retained with the use of 1000 denier Cordura at the ankle and a replaceable, highly durable Polytex; underfoot strap. Easy front entry with Velcro seal to prevent water penetration. Stainless steel fittings are used to prevent rusting and a handy, reflective, tab makes removal in the dark a simple operation. It is important that you make sure the calf fits rather than the shoe size. S/M shoe size 2.5 -6.5 UK Calf width min 39cm max 47.5cm. L/XL shoe size 7 – 13 UK Calf width min 41cm max 51cm.