When you are out on the trail, it's important to be prepared for any weather. The Brooks High Point Long Sleeve is designed to help you thermoregulate through a wide range of temperatures so you can stay cool when it's hot and warm when the temps start to drip. The merino wool and DriLayer blend fabric wicks sweat away from the body and is naturally anti-odor, keeping you smelling good even after a long day in the mountains.