A Hungry Hippie Sews Pattern by Naralie Santini
A super useful basic tote measuring approx 19" x 19" with huge see-through pockets on both sides that are deep and roomy to hold your most important bits.
Inside features MORE see-through pockets on both sides, plus options to make heavy duty webbing straps OR fabric straps. Made with foam interfacing, this tote stands up on its own. Natalie walks you through each step with digitally drawn diagrams, photos, and clearly written instructions.
She uses these bags to carry her groceries every week. Her daughter uses one for swimming, and one stays in her car at all times with emergency gear (clothing, snacks, jump cables, blanket...)
Quilting cotton, canvas, linen, duck cloth, or almost any woven fabric will work plus vinyl.
 
You'll need:
1 yard exterior fabric
1 yard lining fabric
1/2 yard clear 10 gauge vinyl
2 packages double fold extra wide bias tape by Wright's
2-3 yards SF101 fusible woven interfacing
1 yard foam or fusible fleece or batting to interface exterior bag
3.5 yards webbing for straps (faster way) or make your own with fabric.