These flats are both comfortable and give a sexy/sleek look. . .when worn with the right outfit(s).  However, I rated them a '4 out of 5' based on the part of the shoe the strap's attached to.  When I first wore them, they hugged (for lack of a better word) the 'achilles heel' part of my ankle when buckled; but, when I wore them a second time - about a month later from the first wearing - the material (of the same part of the shoe) lost some of its shape and doesn't 'hug' as it did prior.  Overall, the shoe (sole, toe front, material, buckle, etc.) still looks good and, besides, I only wear them with slacks/jeans anyway.  But, that back part. . . .!!!!