Black Diamond created the Belay Parka for those mind-numbingly cold days when your teeth are chattering and you're seriously contemplating taking up beach volleyball. Featuring ThermoLite insulation, this parka is like wearing a sleeping bag--if your sleeping bag was compatible with a harness and actually offered full use of your arms.Oversized drop pockets on the inside hold gloves, water, and anything else you might need while belaying, and the drawcord hem can be cinched tight to lock in precious heat. For such a burly jacket, the Belay is incredibly lightweight and compressible, making it easy to stuff inside a pack.