"A simple, compressable, lightweight, and warm down jacket."
If you are looking for the perfect layering piece for cold mountain mornings or a warm jacket for around town, this is it. The 800 fill down is compressable just as advertised. The jacket fits true to size. I am 5'9" and ~150 pounds of raw steel and the small is a comfortable fit. The arms are long enough to allow for some stretching and reaching, but the torso is tight fitting enough to minimize excess air that your body will need to warm up. The medium was just too baggy for my preference through the torso. We shall see how it holds up to wear and tear, but the materials feel solid.