The model number you want is the EDT770V.
I’m not sure if Amazon is available where you are, but they carry them here:
Beyerdynamic also sells them directly on their web site. This link should redirect to the right site for your region, I hope!
As long as they are EDT770V’s, they should be the right ones. The official pads are packaged in a rather basic fashion, and also come with new black foam inserts to cover the inside of the ear cup.
The leatherette pads, if you ever want to buy new ones of those, are the EDT770S.
If you’re worried about getting official ones, I’d just deal with/call Beyerdynamic directly. I think they’ll ship them almost anywhere, and then you don’t have to worry about it. They have a good warranty on their stuff and I’ve had a pleasant time in the two interactions I’ve personally had with them.
Hope that helps you out!