1. lay the large backbone down with the good side facing up towards you.

2. this is your opportunity to properly space all the pockets in the wallet. it's a little harder than it sounds because you want all the cards to fit snuggly so they don't fall out, but if it's too tight of a fit you'll feel like your cards are always stuck. I explain more in step #5.

3. arrange each of the pockets on the backbone taking the following measurements into consideration. you can decide if you want your wallet to have 4 or 6 pockets total.

a. leave a quarter inch from the side of the backbone to the side of the pocket

b. leave a quarter inch from the bottom of the lowest pocket to bottom of the bottom of the backbone

c. leave a half each between the pockets on the left and the pockets on the right (in the center fold) so the wallet has ample room to fold.



*the final step will be to sew the pocketed backbone to the second large slab of inner tube so be sure to leave room on the side and the bottom so you can fit the sewing machine in and sew them together.

*as you sew the rubber down it will stretch and shift the pockets slightly.