Maharishi puts an emergency backpack in the palm of your hand

If you're the type to stick everything in your luggage, but need a day pack at your destination, Maharishi just released a must-have addition to your packing rotation. Their Rollaway Backpack unfolds from a compact roll that you can shove right into your bag without taking up much room. Once unfolded, you've got a decently-sized bag made from a rugged and reliable vintage parachute fabric that'll serve you well for years to come. 

$215, maharishi.com