Omni Wool Men's Merino Dual Layer Thermals Quick Dry Long Underwear Outer layer: 80% Polyester, 20% Merino Wool / Inner layer: 100% Polyester Thermal pants Dual-layer performance merino wool/synthetic Quick-dry stretch fabric Base layer You can return this item for any reason and get a full refund: no shipping charges. The item must be returned in new and unused condition. Go to Your Orders to start the return Print the return shipping label Ship it!