The Space Saver Mug fits snuggly over the bottom of a 32 oz Nalgene bottle and a 40 oz Klean Kanteen bottle, saving valuable space in your pack. The hard anodized surface is nearly scratch proof, easy to clean, and looks great too. The innovative handle design feels more like your favorite mug at home while still compactly folding down. The Space Saver Mug is large enough to boil water for freeze dried meals. This will be your go to pot for fast and light trips. Graduations are located on the side for measuring just the right amount of water. Holds 24 oz to the brim or 20 oz to the top graduation. Weight: 3.2 oz.