I bought this jacket for the cold snap we had, but it arrived later than expected so I am unable to comment fully on its warmth. It's cosy enough on the moderate days we've had since and I particularly like the fact that you can draw it in at the waist to keep out the wind! The downsides i've found is that the lining gets caught in the zip quite a lot and the pockets have the type of material inside that snags on your hands if they are a bit rough from work or the weather. Nylon pockets would be an improvement! I am a size 10 and it fits very well, even over a sweatshirt.
this jacket is perfect for cold days walking my dog. It has plenty room for a thick jumper or baggy hoodie under it and it is very warm. I have now bought another one and this is now my official dog walking coat. Well pleased with it considering it was only £19.63.