Is it a bum bag Or is it a rucksack It s Both Yes This Manbi Backpack 2 in 1 is an ingenious and convenient lightweight rucksack that packs away into its pocket and becomes a waist bag meaning that you can always have an extra rucksack with you for when you might need it As a bum bag this nifty storage solution has one zipped top pocket which is where the rucksack is rolled into and one zipped bottom pocket Even with the rucksack in the top pocket we found there was still some room for essentials but the main bottom pocket is a large pocket anyway and big enough to carry plenty of bits The best bit about this bag is that when you then need more carry room simply unzip the top pocket and unroll the contents to reveal a lightweight backpack with a generous 25 litre capacity The rucksack features lightweight mesh vented adjustable shoulder straps a large zipped main compartment and a small zipped bottom pocket which is the same zipped bottom pocket as on the bum bag making this an incredibly useful and convenient bag whether you keep it in the car take it to the shops or take it on the slopes to stash your extra layers away However that is not all This lovely lightweight packaway bag also comes with a free Fottle a foldable drinks bottle that stashes away neatly into the pocket too when not in use This is simply a fantastic idea from the designers at Manbi such a convenient and packable bag and as a package this truly makes a really thoughtful gift too