Stomp on the gas in the Burton AK 2L GORE-TEX Upshift Jacket, a waterproof and breathable shell made for heavy activity. This lightweight shell has the [ak] stamp of approval, so you know you're in good hands on your local hill: resistant to rips, tears, and scuffs, this jacket's built to handle the rigors of life on a mountainside. This one has well-placed pockets, a storm-ready hood, and all the versatility that comes from a shell layer. [ak] all day!