The standard-fit Summit Series Advanced Mountain Kit™ L5 FUTURELIGHT™ Jacket takes our most advanced breathable-waterproof technology and levels it up with woven-in Spectra®, a material 10-times stronger than steel, by weight. Whether your exploration takes you on a snowmobile, a near-vertical bootpack or out the door of a helicopter, this fully featured jacket is up for the challenge. Designed to be worn as an outer layer, it'll help you stay protected and comfortable in conditions that are anything but.