I love my new vest, especially the length of it at the back, it covers my butt! More importantly it is so light and so very warm. I am normally between a size 12 (Medium) and size 14 (Large), I purchased the large and it has ample room for garments underneath. If there was any comment to be made, I think the eyelits that the draw string passes through, are quite sharp, so one has to be careful when using. Finally, Moke's customer service can't be faltered, go for it!