1 yard of fabric (for outside)
1 1/2 yards of stiff interfacing (and I mean STIFF)
1 yard of heavy material (I used duck cloth-which I am loving right now. It is kind of like canvas but I don't think quite as stiff). This will be for the inside
1 zipper (longer than your bag is wide)
1. The first step is to decide how big to make your bag. I traced a large mixing bowl on a paper to start. This is going to be the pattern for your two round side pieces. The size of these determines the size of everything else. Mine were 9 1/4" in diameter. Whatever you choose to trace you will then want to fold the circle in half, measure straight across the middle (giving you your diameter). When you get this number multiply that by 3.14 and then add 1 inch (because you will be turning under a 1/2 inch on each side to sew on the zipper). This will give you the length of the piece you will cut for the body of the bag. I made my width 18 ". Along with this cut 3 3" by 72" strips for the handles. Cut matching pieces out of the interfacing and duck cloth for the sides and body of the bag.
So you should have:
2 side circles of fabric
2 side circles of interfacing
2 side circles of duck cloth
1 bag body of fabric (mine was 30x18")
1 bag body of interfacing
1 bag body of duck cloth
3 handle pieces.
Here are all my completed pieces.
USE LOTS OF PINS.
NOTE: if you are making a large bag than my measurements you may need to have one more strip to make this handle piece.
MAKE SURE YOU DON'T HAVE YOUR HANDLE PIECE TWISTED.