I bought walking boots ages ago and found they were heavy on my feet and I felt my ankles were under strain, the Muck boots I still have seem to fit supportively around my ankles and also my feed, I suppose its just the shape and type of leg we have, mine are Victorian (verging on Gothic)short stubby legs, some of you may have Ikea ones or elegant Edwardian ones, and as for feet, mine are more than a dinner plate full!!