Everyone needs a year-round, go-to layer that's just right. From dawn patrol, uphill ski sessions to fast hiking in the shoulder season, the men's ultralight synthetic Smokin Axle Jacket is engineered to keep you dry and warm during highly aerobic activities where moisture control is essential. This ultralight insulated jacket is designed to regulate your core temperature and move moisture for performance without compromise by using extremely breathable, 4-way stretch fabrics that wear close to the body, providing maximum comfort and thermal efficiency in a wide range of conditions.Specs + SizingFeaturesAthletic fit with body mapped materials for optimal body temperature regulationBreathable 4-way stretch lining and PrimaloftA(R) Gold Active Insulation on back and side panels for maximized range of motionChest pocket. Lumbar pocket that doubles as a stuff sackAdjustable draw-cord hem keeps the elements out and seals body heat inYKK VislonA(R) zippers with textured zipper pulls for ease of useStealth, no-draft thumb holes insulate hands while eliminating the gap between sleeve and glove Construction + MaterialsSize Medium Weight: 9oz / 255gShell/lining: bluesignA(R) certified 12D 100% nylon rip-stop, PFOA and PFOS free water-repellent chemistryStretch fabric: recycled 20D 100% nylon stretch rip-stop, PFOA and PFOS free water-repellent chemistryInsulation: bluesignA(R) certified PrimaloftA(R) Gold Active - 100% polyester, 45% post-consumer recycled content