It can get a bit chilly in the mountains, even in summer. No worries though, the HORIZON HOODED JACKET has a soft, insulating reverse side that keeps you nice and warm. On strenuous ascents, you'll appreciate the breathability of the fabric, as perspiration is wicked quickly away from the body. The fabric is also very robust, designed to withstand the rigours of outdoor use and the abrasion caused by the straps of your pack. And to stop your ears getting cold in the cool mountain air, this version of the HORIZON is equipped with a snug hood. So just pull it up, take a deep breath and enjoy the view.