Our best selling rain jacket, the Thunderhead features waterproof, breathable System Three technology to keep you dependably dry in any rainstorm. The updated interior print provides more next to skin comfort, and the athletic fit is less bulky. Lightweight and well ventilated, the Thunderhead is perfect for hiking, backpacking, and a wide variety of outdoor activities. . System Three technology provides waterproof protection and breathable comfort. Updated interior print for more next to skin comfort. Athletic fit for less bulky, more streamlined fit. 100% nylon ripstop shell features fully taped seams to keep you dry. Durable water repellent finish sheds rain so the jacket breathes better and you stay drier. Underarm zippers let you ventilate on the go. Fixed roll away hood. Rugged main zipper with storm flap for added protection from the elements. Adjustable cuffs. Zippered hand pockets with mesh lining for ventilation. Adjustable hem cinch cord. 2.5 layer construction is lightweight and packable. Center back length: 29 in..