Size 4 chestnut boot arrived today and they are lovely, very warm and cosy. The ties tied securely and feel as though they will stay tightly for me. I was concerned they may be too high at 14/15" for my shorter legs (i'm 5.1) but they are fine and with the outside part being cut away it seems to elongate my legs anyhow. I ordered a 4 and the left foot fit did feel slightly loose so I was contemplating returning them and getting a 3 but thought they may be too tight, instead I put on a thicker sock and problem solved they now feel perfect. If you are a half size I would suggest going down to your nearest size rather than up and if you are an exact fit then get your usual size. Lastly, at £59 these are great, just as comfy and stylish as Uggs but half the price! Worth buying these over cheap brand versions too as the sole is great with a good thickness, the inner is warm and comfortable and shades are superior too.