i want to make a backpack similar to this one, only i want to make it slightly differently

i am looking for some transparent fabric to make it with. i can't find this fabric at joanns, or hancock, or walmart, or any fabric store locally, i have traveled to the fabric wholesale district in Dallas, and still no luck, does anyone know where i can find this stuff?
Wholesale Vinyl Supplies
...why are you asking on this forum?

EDIT: reported...

My name is Greg, use it.