This is where I have got to with the backpack for my neighbour's 6 year old fosteree (girl).
The fabric is cotton canvas, I got it from Minerva. The blue is heavier. In hindsight I shouldn't have used interfacing in the straps because they are folded into 4 so it makes for a lot of layers to sew. Where I put in the bottom straps there are 10 layers of fabric and 6 of bosal interfacing. My Pfaff impressed me greatly by getting through it, albeit slowly and one stitch at a time, with a 100 size needle.
I'm at a halt because I decided that I need some rivets to strengthen where the bottom straps are attached in the seam and the rivets I have aren't long enough to go through all the layers. I've got eyelets and the blue cord for a top drawstring. Not sure yet what I will use for a closure, I chickened out of using a magnetic catch because I wasn't sure that I could get the placement right on the front.
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