DoubleWool Longs are Aclima's warmest long johns, with an outer layer in 100% merino wool. The long johns feature two layers of fabric and a close-fitting cut. The elastic waistband has soft merino wool on the inside against the skin, and the garment is reinforced with rib-knit fabric on the inside of the knees and thighs for improved durability and freedom of movement. The long johns have an embroidered logo at the top on the left side.

Two of Aclima's finest materials are combined here: WoolNet and WarmWool. Next to the body sits WoolNet, which creates insulating air pockets between the two layers and transports moisture out to the next layer. Over the wool mesh lies WarmWool, which insulates further and moves moisture even further away from the body.

Aclima recommends DoubleWool Longs as a base and mid layer. Whether you are heading on an expedition, sitting still on a hunt, or venturing out in harsh weather, this is an excellent choice.