Men's two layer, very warm merino wool long johns.
Devold Expedition Long Johns are men’s two-layer, warm merino wool under layer long johns. The layers have been sewed together so you don’t even notice the two-layer structure.
Two-layer structure (Devold Aquaduct) transfers moisture away from the skin
Heavy material (235g/m²) insulates efficiently
Merino wool is a lot smoother than normal wool, so it doesn’t tickle the skin