Almost the perfect down vest. The superior fill power of the 750 goose down and multiple channel design keeps it snug and compact on the body without too much of the 'Michelin Man' effect common to this type of vest. It would be good for a top layer on cold dry days or an insulating layer under a windproof/waterproof shell in more extreme or wet conditions. Ticks the right boxes on warmth to weight ratio and packability, useful pockets, taped hem and arm-holes, and top zip garage. Downsides compared with it main rival the North Face Nupste vest are lack of a DRW finish, not quite as warm, no bottom cinch cord and the Pertex shell looks...well a bit shiny, plus the multi-channel design is not to everyone's taste. Finish is not quite up to The North Face either, the printed logos will be prone to wear far more than the embroidered ones on its rival if that bothers you. The fit is generous and I had to go down a size from my usual medium for a 6 ft 65 kg beanpole to small. This means compromising a bit on length but it is no shorter that the Nupste. As said, not quite perfect but every offering in this category has its pro and cons and as I wanted a very packable, not too bulky, vest for trekking and travelling this was about the best compromise.