Our ultra-lightweight and compact carry-all for day trips, daily commutes, trips to the gym, or as a carry-on. The Fold-Up Backpack, made of our water-resistant Negative Nylon®, is durable and storage-friendly. A use-everyday kind of backpack with a twist of magic: it folds up flat and zips into a barely-there pouch. Pack it up. Fold it up. And go. Used only a few times - there are some light marks on the front as soon in the photo.