I was a little hesitant to buy these mostly because my calves are a bit large and muscular and I run into the problem of boots being too narrow there. However, I was pleased to see that these fit. I got these in an 8.5 and theres also so wiggle room for thicker socks in the winter time. The zipper is quite handy as well for adjusting your pants/socks without removing the entire boot. Not to mention they are ADORABLE! Just a note, the buckles DO adjust but unless your calves are like spaghetti, you probably won't need to. The top strap is pretty much the only buckle that does something for fit.