TwinNeedle packs - weatherproof?

Fellas

Can those with wet weather experience of the TwinNeedle Mollyme packs offer a view on their weatherproof-ness?

Any efforts put into them to improve this? Other than simply using a cover of course.

Thanks

Their robust, well made but no waterproof. They gave a roll closing setup but also at the top is a small zip so you can access the pack, water gets in through that.

Great packs but it you want it water right then use a dry bag inside.