Treated with an emulsified wax. This binds a wax-based product with water to give a non-oily finish. The solutions are heat-processed into the cloth for a longer lasting finish and higher performance. The finish is vegan.
This material can be washed by hand, but it would need re-proofing and the surface does change, so it is best to avoid any washing if you can.
Do not iron, just finger press.
Do not use any interfacing with this type of oilskin.