Waning daylight and suspect weather have you climbing fast, but you’re still two long pitches from topping out. Fortunately, inside this warm, intrinsically soft crew, every situation feels like it must have a silver lining. We make all our Merino Air baselayers from a blend of Merino wool from the grasslands of Patagonia (51%) and recycled polyester (49%). We treat the wool fibers with an innovative spinning technology that increases their loft and makes them feel nearly weightless. The lofted wool and recycled polyester yarns are then knit directly into a seamless garment. The result is a baselayer with superior performance qualities; it offers outstanding warmth for its weight, provides exceptional breathability, maintains the natural odor-fighting properties of wool, and improves wicking, durability, and dry times compared to conventional merino baselayers. Our Merino Air is soft against the skin, stretches to move with the body and features 3D construction to eliminate seams and chafe points throughout the entire garment. Details include 18.9 micron-gauge yarn for a skin-friendly feel and a zigzag knit construction to trap heat.