Bridgedale s merinofusion summit socks for men are designed for extreme comfort in the extreme outdoors bridgedale s merinofusion technology wraps merino wool fibres in coolmax fibres for supremely warm dry feet merino wool is a completely natural fibre and has many benefits over similarly insulating synthetic products for starters many find synthetic materials irritate their skin merino wool is soft lightweight and breathable and far less itchy and irritating to skin than ordinary wool another