The ultimate base layer. Our Merino Crop Tank features a relaxed fit to flatter all sizes and is crafted from a blend of sustainable Merino wool and durable, water resistant nylon. Known as nature’s performance material, Merino wool naturally regulates your temperature to keep you warm without overheating, and because of the wool’s natural antibacterial properties, our tank is perfect for long distance trekking. You can travel with it for weeks without ever having to throw it in the wash.