There are 2 important things you should know before you go in outdoor activities.
You should be able to store your clothes, and keeps your stuff dry.
The North Face Base Camp Duffel
The lightest duffel bag and it can be carry by hand or by pack.
Patagonia Black Hole Duffel
Its light to carry and the straps are removable, it has extra pockets and its bottom is padded to protect your things to be damaged.
Kwik Tek Dry Pak Waterproof Duffel Bag
This type of bag is water resistant as it is made from flexible fiber vinyl material. You can shrink this bag by rolling it if you don’t want to use the entire bag.
OverBoard Waterproof Duffel Bag
This is a roll down bag which you need to roll it first before it can close properly. This bag has a water proof resistant and it comes of many sizes.