Fantastic! I sized up a 1/2 size to accommodate thick socks and that was perfect. LOVE LOVE LOVE these boots! The lace up design allows for most calf sizes. Top of boot is a few inches below my knee so not too tall. Stylish, comfortable yet also waterproof leather. I do not believe these will offer warmth, however, but still a WIN in my book.. As it is July, I obviously am not wearing them currently-I will update my review after winter hits. Colorado winters are tough so that will be the true test!