This Minus33 crew neck thermal underwear top for mean is made of OUR WARMEST 100% MERINO WOOL. Merino wool, over the years, has become the first choice for all avid outdoor enthusiasts because it's impressive qualities of comfortable, breathability, and warmth. Merino wool thermal underwear
is much finer and thinner than traditional wool, making Merino wool super soft and non-itchy. Our merino wool thermals feature flat lock seams so you won't have the irritation while you walk. This heavy-weight merino wool thermal underwear
is sure to keep you warm in even the coldest temperatures.