For guide sizes, measure the hand circumference at the base of the knuckles:<br> 185mm = S, 220mm = M, 255mm = L.<br><br> Sealskinz® are the world's only range of waterproof, breathable, close-fitting socks and gloves. Suitable for a wide variety of uses, from outdoor pursuits to gardening, you're sure to stay dry with SealSkinz® on!<br><br> <strong>SealSkinz® are suitable</strong> for cycling, walking, climbing, golfing, riding, canoeing, motorcycling, sailing, fell running, orienteering, gardening, fishing, rowing, caving, backpacking, mountaineering ... <strong>and 100% waterproof</strong>