I'm a UK size 8-10 and having read the review about the sizes being too small I was skeptical to order a bigger size. Luckily the only sizes left were a 38 and a 40 so I went for the 38. It fits almost perfectly, but if I'm wearing bulky clothing it does get a little too snug around the hips when done up. One thing I would have liked on this jacket was the option to roll the hood into the collar, as it completely detaches. This is only a small thing however, as this jacket has some really cool features, like a pocket at the bottom of the jacket big enough for a small mars bar, and little pockets with poppers to attach the snow stopper to. It also has a hole in the inner pocket and a guide by the shoulder to keep your earphones tangle free and safe. Now all I need is some snow.