Genuine ladies Montane Featherlite Down Jacket in Atlantic Blue - size UK 10. The colour is fabulous - it's a purplish blue rather than a navy blue. The inner is pink - the photos make it look red but it's a dark pink - a great colour combination. Lots of lovely detailing - an inner zipped pocket and the front part of the hood sits flat around the neck thanks to the clever minimalist drawstrings. The zips and toggles all work smoothly. A gorgeous jacket which I've worn for a few months only. Warm, light and bang on trend. It's in excellent condition apart from a slight nick to the lower left sleeve (see final close up photo). I haven't tried to repair it, just left it as is. Bought from Cotswold last year for £180. 

For the technical specification see : 
https://www.montane.co.uk/womens-c15/clothing-c30/womens-insulated-jackets-c16/womens-featherlite-down-jacket-p234

It is a UK 10 but is generously sized and in my opinion would also suit a UK 12. The measurements are : 
underarm to underarm : 20 inches
nape to hem (at centre back) : 30 inches
sleeve length (from armpit to cuff) : 23 inches

From a smoke and pet free home. Paypal only please.