You get 3 jackets in 1! A zip-out later can be worn alone for warmth. The shell can also be worn alone for those warm afternoons and sudden showers so you won't overheat with all that unnecessary insulation; complete waterproof protection whether you're hitting the slopes or caught in a torrential downpour. The mesh interior is naturally wicking, keeping you dry, and the removable and adjustable storm hood is there for when those unexpected showers hit. Worn only a few times!