It doesn't take too much time to do it [ 2 days] and it's really easy! you just gotta be careful where and how to sew the CapriSuns together. I recommend you to use a sewing machine, of course you can sew it using only your hand but with the sewing machine it'll be more easy and fast ;) . Besides, the machine has functions your hand doesn't have. For instance, for this purse i programed the sewing machine to sew on a zig-zag mode, if you sew by hand this will be more difficult to achieve.. but not impossible. So you do it the way you want! :)
One side. 
This is how it looks from the front. 
Look from the inside. [optional:you can put a piece of fabric inside. ] 
Down-side.Things you'll need:
* CapriSun envelopes [duh]
*Sewing machine
*Scissors
*Time and dedication :)