Lightweight Waterproof Windproof Breathable Underfoot straps One-touch cord Medium fits boot size UK4 - UK7.5 (Euro 36 - 41) Large fits boot size UK7.5 - UK12+ (Euro 41 - 46+) Weight: 220g approx.The Trekmates Rannoch Gaiter is lightweight, breathable and fully waterproof.__ They are windproof and feature under-shoe straps so you stay comfortable all day, and with one touch cord you won't have to mess around with annoying toggles and elastic to make sure they fit properly.