Thanks for yours replies.
I bought the RIB with huge hole on the end. (There patches are).
I decided to use inner tube for that part of tube (2,5 m) to make sure that there is no more holes and the air stay where it should
Then I put hypalon patches just to glue a hole.
Now, I would like to do something with this. Let say, create patch for all area where existing patches are.
But I am not sure if so huge patch (length 54cm, width: 65cm) in irregular shape will fix well.
Also I have a difficulty to buy so huge part of hypalon.
Do you thing I can change hypalon to some other material? Just to make tube prettier.
Could you please tell me what material is used on new photo. Is it a hypalon or something else ?
Thank you for your help.