Minus33 Mid-Weight 100% Merino Wool Bottoms - BigMinus 33 Australian merino wool long underwear bottoms. This mid weight bottom (230 g m) is made of the finest natural merino wool, which is put through a special process to create a garment that is washable, dryable and so soft and supple it is unbelievable. Minus 33 wool garments wick away moisture 30% faster than synthetic fiber and is also fire retardant. The high quality wool is water repellent, naturally elastic and long wearing for years of