Do you know what the belt strap around the children's calf when they are riding is for and is called?

Yes it is exactly what I meant !! Thank you so much for the explanation !!! 😊
Exactly what @alannahreilly said, the are called garters and their purpose is to keep their jodhpurs from coming up, but from experience I can tell you that they are absolutely pointless. They honestly helped my jodhpurs slide up even more🤦🏽‍♀️lol.
I think you mean a garter strap, or it can be called a jodhpur strap.

Does this picture show what you meant? If it does then it would be a garter strap.
These are used to keep children’s jodhpurs from moving.

Hope this helps!
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