... abrasion resistant nylon, 4% elasticsInterlining: Porelle high performance waterproof breathable membranesInner sock: 40% merino wool, 40% ... anti-pilling acrylic, 20% nylonPerformances:- Completely waterproof close fitting to mid calf- Highly breathable- Mid ... abrasion resistant nylon, 4% elasticsInterlining: Porelle high performance waterproof breathable membranesInner sock: 40% merino wool, 40% ...