Bridgedale merino fusion technology brings merino wool together with technical fibres to provide balanced insulation with a high level of comfort merino wool is a fine wool used in socks giving insulation and next to skin softness whilst the technical fibres rapidly transport moisture away from the skin leaving your feet feeling dry and comfortable this technology is the ideal choice for travellers and hikers in the wild places of this planet midweight sock designed for all year trekking and bac