Example of the strength of Kangaroo Jumper's PVC Vinyl
Kangaroo Jumper PVC Vinyl Tech Data
Notice how the PVC Vinyl on the trailer holds the product in the trailer even while taking a turn with heavy and loose containers.
If this trailer PVC Vinyl can hold up to this advanced test, then it should hold up fine for your playground jumping pillow.
This is the same material of the jumpers.