JETBOIL says:
The Lightest and Most Compact Jetboil Ever. We know your dreams are big and ambitious. This is why we designed the all-new Stash™ to be lightweight and compact, maximising your pack space without sacrificing that iconic Jetboil performance. At 200 g, the .8L Stash is 40% lighter than the .8L Zip.
The Stash folds down into its own .8L cook pot, the lid securely holds a 100 g fuel canister with space to store mini-lighter (JetPower Fuel and mini-lighter sold separately).