This lightweight, highly breathable shirt is a great option for warm weather excursions. The Valhalla long sleeve zip is a versatile and lightweight shirt designed for high exertion in the hottest weather. From late spring to early fall hunts and everyday wear, Kryptek Cooling™ technology works to keep you cool and dry. Reinforced shoulders hold up to under a heavy pack and a 1/4 zip sheds extra heat. Combine with the Valhalla Pant to complete your hot weather collection.