With a close-fitting hood that fits under a ski or bike helmet, this wool half zip helps keep your temperature in the comfort zone. merino wool Sweat-wicking Merino Wool is soft, naturally insulating and will help regulate your temperature naturally insulating temperature regulating sweat-wicking soft handfeel naturally breathable features Designed for: Run Thumbholes: Help keep your sleeves in place and hands warm Fitted hood: Close-fitting hood locks in heat In great condition, no obvious signs of wear.