You use a zipper to close this bag. It comes in two different colours, including beige, and it has a 50-litre volume.
From Amazon
YETI Panga Series Airtight, Waterproof, Submersible Bags, Panga 50, Tan, Panga 50, Panga
Acme Tools
Yeti Storm Gray Panga 50L Submersible Duffle Bag