I like using mesh bags and then wear an Altus when it rains. No need for the weight of dry bags or pack covers or packing cubes. I can see in them, they are silent, and their weight is tiny.
I like to organize my things in different containers, and I always have a plastic bag or two for wet things. Th e idea of packing "cubes" seems to me to be more suitable to putting things into a rectangular suitcase with fixed dimensions...
Packing cubes are not only great for the organization of items, they also keep things clean when I have to dump out my pack on the dusty trail. They also help me to consistently distribute the weight throughout my pack. As the cubes all have...
1: Secondary water barrier. While my backpack is waterproof by itself, for the odd case of water getting inside i would prefer a "second line of defense". I'd rather not have to sleep in a wet sleeping bag or get my spare clothing wet.
2...
For organization.
I've seen many people dump the entire contents of their backpack on the side of the road looking for one single item. I use very lightweight stuff sacks of different colors. I know what's inside of each bag by the color, so...
Even with minimal content it can help to keep your things separated.
I have one drybag ( compression) for my sleepingbag.
One for clean clothes.
One small one for underwear and socks.
Then ziplockbags for toiletstuff and one for first aid and meds.
To me the easiest and lightest and 'roll down' are dry bags (cheaper too) .. as well as not being noisy to open them at night or early morning in a refugio bunk room! .. get a set in different sizes and different colours and you will always know...
Why waterproof/resistant?
Either use something like an Altus that will keep both you and or your pack dry, or line your pack with a plastic bag of some kind. Then you can use really lightweight bags of any kind inside - even really lightweight...
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