I have very wide calfs.  I had looked at riding boots and actually had gotten a pair--paid twice the amount for them-and this boot is nicer than that one.  Of course these are lower than riding boots...but oh so comfy and stylish.  Really nice with jeggings and good tread on the bottom.  I highly recommend.  And definately order at least a half size larger than you normally wear.  They are made small.  (In the foot..)