comments:
I got this from another redditor: A collapsible waterstoragecube weighs 66 g and holds almost 5 liters. One doesn't have to fill it up completely and can remove air. Dimensions lets it fit in most packs and good for water caches, too. https://www.amazon.com/dp/B07M84GZC5 Use with standard plastic water bottles in side pockets to get the volume you want. To keep pack contents dry I think everybody uses a pack liner such as a trash compactor bag or a bespoke one. All properly packaged food is waterproof. There is no magic about food.: 4 kcal per gram for carbs and protein; 9 kcal per gram for fat. Also has to be palatable and something you will actually eat. Here are photos of what I took on a recent Grand Canyon trip and a Sierra trip: https://i.imgur.com/53M7xXV.jpeg https://i.imgur.com/pc4tclx.jpeg Breakfasts and lunches are definitely no-cook. Dinners could be easily.