Fully waterproof socks from Sealskinz100% waterproof, windproof and breathableThree-layer constructionMerino wool lining - for moisture control, insulation and comfortZonal elastication - adds supportFour-way stretch - for added comfort and better fitFlat toe seams - prevent rubbing and blistersFootbed padding - reduces pressure and increases shock absorptionOuter materials: 62% polycolon / 29% nylon / 9% elastaneInner materials: 36% merino wool / 36% acrylic / 18% polyester / 5% nylon / 5% elastaneRecommended activity - trail running