Granger's G20 Trek insoles can give you the comfort and support you may be missing from your walking footwear.__ They're made using dual-density EVA foam, to give an increased level of comfort and stability over similar products. __ As well as wicking away moisture with their microfibre top sheet, the dual density foam footbed absorbs shock whilst providing unrivalled support, giving you a sturdy insole that provides comfort throughout the day.__Weight: 70g (pair of size 40) Microfibre top layer to help wick away moisture Dual density EVA bottom layer to help give all day comfort and shock protection