The ZoneKnit™ Short Sleeve Slit Back Tee is icebreaker’s most breathable and lightweight tee designed for maximum breathability during high-output activities. Combining moisture-managing Cool-Lite™ jersey fabric with body-mapped panels of eyelet Cool-Lite mesh, the ZoneKnit keeps airflow high to help regulate your body temperature on the go. Offset shoulder seams prevent friction when you’re wearing a pack or moving fast. Silky-soft merino and TENCEL®, sourced from sustainable eucalyptus plantations, combine to create icebreaker cool-lite™, a luxurious fabric that naturally regulates your body’s microclimate. Inspired by nature, icebreaker harnesses the performance qualities of natural fibers to offer an alternative to clothing based on petrochemical synthetics.