Justin Charles provides long underwear and accessories made of 100-percent super-fine Merino wool, which is extremely soft and provides natural insulation. Merino wool wicks moisture off the skin surface approximately 28 percent faster than any synthetic material, absorbs approximately 30 percent of its weight before feeling damp and neutralizes bacterial growth so it won't smell, among other attributes. The long underwear top is available in either midweight or expedition weight with either a crew or zippered neck in sizes small to XXX-large. The bottoms feature an elastic waist and are available in midweight or expedition weight in sizes small to XX-large. Accessories include a stocking cap, neck gaiter, balaclava and knit gloves -- all of which are one-size-fits-all.