It has the sloane's single compartment -- the original ball's four pockets have gone away, and it's just one big open compartment. It does have an interior removeable pouch, zippered.
It has the campana's opening i.e., no flaps like the sloane, but a buckle strap.
It has the sloane's rings but from what I could see they are not leather wrapped? not sure about this last tho...can someone else confirm?
and the model i saw did not have the curved seams of the original ball.
To be honest I prefer the outside of the current ball and the inside of the new ball!!
Not sure which outside I prefer, but I definitely prefer the inside of the current ball bag. I compartments! I wonder if they'll put the old-style ball bags on sale....