The fabric is a designer print (Michael Miller)
patchwork cotton, and it's fused to
Medium-Heavy interfacing and Fusible Wadding.
The straps are a heavier fabric - a medium cotton drill weight.
The fabric is a light bonded PVC
with Medium-Light
interfacing and Fusible Wadding.
(Don't try this as your first attempt..or unless
you're an experienced sewer. It's super-tricky
stuff to manage in this style).