Hypalon is a woven polyester fabric with textured rubber bonded on both sides. It is one of the most weather resistant fabrics.

Normally, this hypalon material can be seen in the rubber dinghy for its durability, eco-friendly and so on.  It can also often found on backpacks and military gear and other outdoor products. It is great to use for various small bits on bike packing bags as it has a very good friction (rubber).