I am a little late on this
but hopefully I can give some good input.
I've tried dozens of 'waterproof bags' for the magazine
and this one is honestly the only one that i personally own.
They come in all kinds of sizes and colors
it even floats when sealed so all your stuff wont end up at the bottom of the ocean.
I don't get anything from them - so its not a sales pitch
this is just the product i like and use
hopefully they'd be able to ship or have a distributor on your end