Devold Expedition merino zip neck is a two-layer wool base layer designed for extreme weather conditions, tested on multiple polar expeditions. The inside is made of 100% soft merino wool, while the outside consists of 90% Aquaduct-treated merino wool. The Aquaduct treatment in the outer layer enhances moisture absorption from the body, quickly wicking it away to evaporate, keeping you dry. We also use 10% polyamide in the outer layer to increase durability, ensuring the garment can withstand the toughest expeditions. Expedition wool base layers offer exceptional insulation and unique moisture-wicking properties, making them the solution for the coldest days – whether you're a polar explorer or not. - Double cuffs for added shape stability. - Extended back panel. - Flat seams for optimal comfort. - Raglan sleeves for freedom of movement. - Wrist warmers with thumbholes. - Total Easy Care merino wool: machine washable and tumble dry safe. - Aquaduct treatment provides superior moisture-wicking properties.