This tutorial is for a simple drawstring backpack with leather details. Piping gives the flap structure and leather is used for the flap closure and the adjustable shoulder straps.
This tutorial is for intermediate and advanced sewers.
You can use a sturdy cotton fabric like canvas for this backpack. The tutorial includes more information on materials.
width: 34cm/13-1/2in height: 42cm/16-1/2in depth: 24cm/10in