Normally a size 7M but the 6 fits with extra room. Definitely size down. Boots are a bit narrow. Good quality for the price.Beautiful, soft and comfortable. Bought these for my 18 year old daughter for college. She loves them! She has worn them around campus and says they're very comfy. Hopefully they'll be great and keep her feet warm and dry, when winter really hits Massachusetts.These boots were okay as far as looks go. But, I ordered my usual size (8) and these were way off. They were at least a size 9, maybe a 9.5. I returned them just because I didn't want to hassle with reordering and returning until I got the correct size.As far as winter and water wearable, these fit the needs very well, and they are quite cute. I knocked a star off bc I thought the insoles would feel like other uggs and they don’t. They aren’t super uncomfortable, but they aren’t the little pillows of pure foot joy that I expected from owning 2 other pairs of ugg boots.I bought these boots on a whim right before I left for New York City because there was snow in the forecast. They felt a little big, even though I ordered my normal size, but I kept them because I didn’t have time to exchange.Let me just tell you how much I love these boots - we walked over 22,000 steps the very first day I wore them and there was no pinching, squeezing, or slipping. They were perfect and kept my feet dry and warm with no achey arches. If you are looking for a cute pair of comfy boots that can handle sight-seeing for three full days in a big city, I recommend getting these!!One of the only feminin looking winter boots on Amazon right now. Comfortable with good traction in the winter time. I don't know about longevity because I just got them but they look great and I am walking about 3 miles a day in them without any problem. I ordered them based off my high heel shoe size, not my tennis shoe size.I wanted a boot to get me through the soggy part of winter (melting snow, light rain). These are more a waterproof boot, rather than a warm fuzzy boot as these are not lambs wool lined, but I wore chunky socks and was quite toasty. I love these. They run just a tad large but is great for the bigger socks. You won’t be disappointed.Love them