There are 3 layers in this TPU waterproof fabric.
The first layer is water repellent.
The middle one is basic fabric. It's 600D polyester cationic oxford fabric with good tearing strength and tensile strength.
The bottom layer is TPU Film. It makes the fabric to be completely waterproof and airtight. The soft and elastic TPU layer are easy to weld.
This TPU waterproof fabric could be widely used in waterproof bags, outdoor backpack, map case,Ipad case,Phone case,water bucket, water bladder, dry bags, storage bag, tent, airbag, inflatable helium RC airship, hot-air balloon… etc.