Made with 50% lightweight 190-gram merino wool and 50% polyester, Badlands Mens Mutton Base-Layer Bottoms regulate temperature, keeping you warm when its cold and letting out warmth when its hot. They also wick moisture, leaving your skin dry even when activity levels ramp up. Blended with polyester for long-term durability. Naturally odor-resistant. Imported. Sizes: M-2XL. Color: Stone. Type: Base Layer Bottoms.