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. . 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-awa