The Rab® Microlight Alpine Jacket combines micro baffles around the body and shoulders with smaller nano baffles under the arms for breathability, all wrapped in Pertex® Quantum fabric that's windproof yet packable enough to stash away when you don't need it. With its low-bulk design that layers easily and performs year-round across all-mountain activities, this bestseller proves that sometimes the most versatile gear is the kind that simply does everything right without overthinking it.