Review on Naturehike Lightweight Packable Backpack Ultralight by Melissa Hall

This 25 liter foldable backpack fits snugly against the body and does not fall off the body like most foldable backpacks. similar to Aquaguard zippers. The bag is tiny, I think it's closer to 15-20L than 25L but that's it. The bag packs very compactly and can easily become your everyday travel backpack and packs easily into your carry-on or travel backpack. When folded it is about the same size as the 18 liter version of this backpack. Nylon/fabric is super transparent and thin. Inspect your purchase and give the water bottle pockets a firm (but not very firm) pull to test for leaks. The 25 liter water bottle bags are a lot worse than the 18 liter version. The 18 liter version has much better water bottle pockets. The 25 liter water bottle bags are mostly made of this inelastic nylon, and only a few centimeters of the water bottle bags are elastic mesh, which makes the whole bag not elastic at all. Fits a 20 ounce Monster energy drink or a 20 ounce Nalgeen water bottle. When the pack is full, the usual two 20-ounce cans of Monster Energy energy drink will fit either side.