T-shirt yarn Backpack for girl or woman

I show in pattern how to make a shallow single crochet, how to crochet the cord, how to make a braided puff stitch for the flap. There are three crochet charts and explanations of all with photo.

If you know how to use a single crochet, double crochet, puff stitch, how to increase - you really can crochet this rucksack till 1 day! I made it till 2-3 days, but I crocheted till 1-2 hours every day.

27x23x11cm

For making you will need approx. 250-300 of t-shirt yarn (100% cotton or blend, what you can find or to do from old t-shirt) and crochet hook - size M/N (9.00mm).
But you can use any yarn, only choose right crochet hook please.
You will need a lutch and three rings. Or you can sew button to the flap and sew straps to the back of backpack.