Devold® Expedition is constructed as a dual layer wool underwear garment for extreme weather conditions, proven on several polar expeditions. Devold® Expedition insulates extremely well and has a unique ability to transport moisture. The Aquaduct merino wool is specifically designed to move moisture away from the skin side of the fabric to the outer surface where it evaporates. Material outside: 90 % merino wool, 10 % polyamid Material inside: 100 % merino wool Weight: Extra warm 235g/m² Fiber: Fine: 18,7 mikron