Stay warm without overheating with icebreaker’s merino wool mid layers. Designed to work as part of a versatile layering system, these pieces provide breathable insulation, trapping warmth when temperatures drop while allowing airflow to keep you comfortable during movement. Made from premium merino wool, each mid layer naturally regulates body temperature and moves moisture away from the skin, keeping you dry and comfortable in changing conditions. The odor-resistant fibers allow for extended wear between washes, making them an essential layer for outdoor adventures, travel, and everyday life. Choose from jackets, half-zips, and versatile pullovers in a range of styles and colors. Whether layering over a lightweight t-shirt for brisk fall days or wearing under a shell for extra warmth in winter, merino mid layers provide the perfect balance of performance and comfort. Pair with base layers, outerwear, and merino socks for a complete layering system built to handle any season.