I’ve been using the wallet version for almost two years now. I get compliments on it regularly and it's super easy to open and close due to the magnetic clasp. The clasp is magnetized so the bags and wallets just snap shut, because nobody likes fiddling around with buttons and buckles.
Each side of the bag is printed in one piece. The hinges on each surface are printed in place, so the “fabric” moves and bends right out of the printer. The two sides are then manually assembled together using 3D printed components that snap into place.
You can also adjust the size of the wallet by copying/pasting the squares and triangles.
Also see related design Mixee Bag: https://www.youmagine.com/designs/mixee-bag/
Creative Commons Attribution Noncommercial Share Alike