Unique... : )))
All the straps you will see here are impossible to find, as they come from a friend of mine who made them, some years ago.
Calf:
With a special stitching:
Crocodile:
Calf without stitching:
Thin instead of thick ( very thin, indeed )
Here a group strap pic ( 2 on the left from the crocodile strap, and one on the right ):
Or these 3:
Best,
Nicolas