This bag is worked using 2 strands of sport weight yarn held together. It can also be worked with a single strand of medium worsted weight yarn. The flap is worked with beads, so you’ll need 10 beads with holes large enough for the hook to pass through.

Video tutorial is available in my YouTube channel
https://youtu.be/5EggMxRKnb0?si=4I4-qZp6mwjbI-gD