I have worn a different style of Privo sandals for years.  Over the years, I have had several pairs in size 10.  Sadly that style was discontinued.  This one was similar so I bought a pair.  The size is not at all like the other style.  This size 10 was way too small.  Strangly though, the other Privo shoes I ordered at the same time in a size 11 was way too large.  I wish Privo could get their sizing to be more consistent.