The Merino fabric of Icebreaker's Atlas 150 short sleeve shirt makes one of the best combat baselayer shirts for hot, dry climates. Extremely breathable and wicking, Merino wool also has the unique No Melt, No Drip qualities that make it so useful to the modern soldier. When exposed to heat and flame, merino is self-extinguishing so its benefits against the skin of the modern soldier are obvious. The Atlas 150 weight shirt also layers very well under other layers, armor and chest rigs so as to prevent chafing, increase comfort all while performing its job as a wicking baselayer. Learn more about the advantages of Merino fabric.