Whether you wear them alone or under a shell, the lightweight Merino 3 MW Glove Liners from Patagonia keep your hands warm and your fingers dexterous. They are made from a soft fabric blend of Merino wool and recycled polyester for a custom fit and maximum flexibility. The chlorine-free Merino wool from non-mulesed sheep naturally stretches, has a versatile warmth-to-weight ratio, manages moisture, and stays warm even when wet. Slow-washed for softness and shrink-resistance. bluesign®-approved fabric.