I can't find riding boots that fit without a big gap at the top. The ones I have tried fit the widest part of my calf, so I can't look for boots with a smaller circumference. I tried boots that zip in the back, thinking that the gap would be in the back, and not so noticeable. But they still gap on the side. I looked at some last weekend that have buckles at the top, thinking they could be tightened, but the buckles looked to be decorative rather than functional. Has anyone seen any that are adjustable at the top in the $150 range?