I am a great believer in down for warmth and also appreciate the quality of Western Mountaineering sleeping bags and clothing. Last year on my trip in Lapland along the Nordkalottleden I used a Western Mountaineering Megalite sleeping bag which in a regular size weighed 750 gms, and it provided me with sufficient "wiggle room" and length to keep me warm, and too warm some nights. I also use the Western Mountaineering Flash Jacket, this is a lovely jacket ideal for cold evenings and during winter I layer it under a BPL Cocoon Hoody.
As I started my planning for the coming trip to Lapland, I begun to look for a vest to layer under my BPL Cocoon Hoody when the temperatures dip into the single figures. I was pleased to discover that an online retailer Outnorth had the Western Mountaineering Flash Vest in stock and I did not hesitate to purchase one.
The vest is of simple construction, large pockets, no collar as well as a zip down the front, it layers well underneath a puffy hoody and the XL weighs 184 gms.
I used it on my last trip along the Hallandsleden; the first evening of use was after arriving at camp in hail storm, I was chilled and it was only when I put the vest on under my Haglöfs Lim Barrier Pullover (no longer available), that I started to warm up. On the last night of the trip with a cool breeze coming off Björsjö at Mästocka I was surprised at how comfortable and warm I was wearing the vest over a shirt and woollen short sleeve shirt.
If you are looking for a down vest then I can recommend the Western Mountaineering Flash Vest.