MELGES 20 - European Championship 2023 - Porto Ercole 2

We need the special bag when we lower the gennaker into the boat (Melges 20). I'm talking about the bag in the boat, attached on the port side, For my explanation... I can say that the bag measures approximately: 24 inches for opening about 10 feet long. Are you the company that makes it? At what selling price? Otherwise, do you know which company supplies this shopping bag? Thank you for your help. Sorry for my English text, I am French speaking from Quebec. 

Also we need the small triangle (probaly rubber) just under  the mooring hook.

Thank yoiu