How to Sew a Round Bag Using Bosal Foam

Start by marking your fabric around one of your rounds about a 1/4 inch allowance over the edge. Do this in both your outer and inner colours. It is worth marking your inner fabric now as you won't be able to use your BOSAL rounds as a template once you have completed your bag. 

You can now place the outer colour onto your BOSAL Rounds, place your fabric on the textured side (this is the side it will fuse to). Using an iron gently run this over the fabric to bond the fabric onto the round.

Now for the fun bit! Go to your machine and sew any design into your fabric, the BOSAL round allows you to sew as if you are quilting which is great. I went for a criss-cross design.

Now that you have your zipper and base pieces completed its now time to join your base/zip piece to your rounds.

Carefully pin in place all the way around your first round. Make sure you have both of your fabric sides on the inside like pictured.

Remove pins. Get your second round and begin to pin this in place, remember the fabric side needs to be on the inside.

Tip: Keep your zip open as this will allow you to turn the right side out once sewn.

That's the main part of your bag done.

Turn the right side out and shape your bag in place. To make my base more solid I simply cut a small length of the BOSAL strap cushioning and placed this along the inside of the base and carefully ironed the fabric to bond this in place.

Now that the main part of your bag is ready, it's now time to make the strap using the BOSAL strap cushioning.

Using two strips of my outer fabric and one strip of my inner fabric each measuring 13-inch x 2 1/2 inch. Join these together to make one length. You will want to make your lengths different to this if making this bag for an adult. I've based my measurements suitable for a children's bag.

Using an iron, as the BOSAL strap cushioning is double side fusible careful fold one side of your fabric about 1/4 to 1/2 inch over and iron in place just on the fabric.

Now fold over your remaining fabric over the top and fold the edge under itself and pin in place. Iron over this just so the BOSAL strap bonds to the fabric.

You will now need to fold the ends and pin in place on each side of your bag ready to sew in place. Sew on your machine in a square shape around the area you folded and pinned on to your bag.

There you have it, that's the main part of your bag, now it's just the lining to complete!

Go back to your two inner fabric pieces that you cut out earlier in the tutorial. Cut an additional 2 pieces of your inner fabric 13-inch x 2 1/2 inch.

Cut one of your pieces in half length ways which will allow for your zip. Join your lengths together to make a round piece. Pin this onto your rounds.