I use a brand name Ralftech
I really like the expedition line which is total waterproof and RED
2) Press the english flag (You know which on)
3) Press products, on the top left corner
4) Find and press "HEAVY DUTY" picture of men with inflatible.
5) Press "Expedition Tech Line"
I use the Expedition Red 5L to my wallet, phone and other personal items.
and then I have both the Expedition Red 90 and 120, for my and the crew clothing.
I have written a number on each bag. Then each crew or guest get their own bag. When I have new guest on board they will each recieve a bag with a dedicated number on it. Inside the bag there will be a Inflatible lift west, sailing clothes or survival suit, depending on the time of year, then the guest can change and put thier own clothes inside the bag, this way they will be nice and dry when we return.
I also get a nice price on them
I might be able to source some if your interested.