Peak performance for maximum summer comfort: The Men's Brightwater Chill Shirt is a functional shirt for active summer hiking. Jack Wolfskin have used a performance nylon fabric that continually adapts to your body temperature. So the warmer you get, the more moisture the fabric shifts to the outside to evaporate. The mesh lining promotes air circulation under the shirt and optimises the climate regulating performance. The fabric in the Brightwater Chill is also pleasantly soft, odour-inhibiting and protects your skin from harmful UV rays. The sleeves can be rolled up and fixed in place.