Montane Endurance Pro Gaiters @ £25 with Go Outdoors Discount Card. Normal RRP £50.
http://www.gooutdoors.co.uk/montane-endurance-pro-gaiter-p386721 (NB Size L shown as in stock Size M Collect only so you will need to check availability at your local branch)
Montane's Endurance Pro Gaiter has an ergonomic cut which doesn't restrict your freedom of movement, yet still still ensures a close protective fit.
Constructed from GORE-TEX® PRO 70D fabric, it is extremely waterproof, highly breathable and provides great durability in extreme environments.
It has been long cut so that it sits comfortably over the calf, whilst the hook and loop closure has been moved towards the outside leg which allows for increased ankle articulation.
Ergonomic zoned design
Ankle reinforcement
Secure gaiter closure
Underfoot strap adjustment
Rear calf adjustment
Front lace hook
Weight: 172g
Sizes
S = UK 4.5-7 / EU 37-40.5
M = UK 7-9 / EU 40.5-42.5
L = UK 9-12 / EU 42.5-46.5
eBay link to the Large Size @ £26.98 plus £1.99 post.
http://www.ebay.co.uk/itm/Montane-Endurance-Pro-Gore-Tex-Gaiter-Walking-Hiking-Adults-Mens-Ladies-Womens-/272739763574