The Icebreaker Atlas Short Sleeve Womens is an active base layer that will keep you cool and comfortable. Like all Icebreaker products, the Atlas is made from 100% pure Merino wool and is silky smooth against your skin. The Bodyfit 150 shirts are designed for use in high temperature conditions where keeping cool is a top priority. The Atlas wicks moisture away from the body, keeping you cool in the heat. Versitle enough to be used as a base layer or on its own, the Icebreaker Atlas Long Sleeve Womens is ideal for all your high-activity needs.