I LOOOVEEE mine =D these are what I have
Horse-S Jointed Stirrup Irons - Dover Saddlery.
They certainley help keep my heel and calf in a better stable position than my old stirrups =]. Plus the new paddock boots I got to ride in are great.
Jointed stirrups + new riding boots = heaven ! Haha
Any one have these? Pros cons? Why you do or don't like them?