Currently popular waterproof laminated fabric is a non-porous hydrophilic membrane. This material is used by more and more brands, 

not only because the non-porous hydrophilic membrane achieves 100% waterproof performance, but also because it is environmentally friendly, 

and it is harmless to the human body. The laminated non-porous hydrophilic film does not contain ptfe ingredients, it can contact with the skin directly, 

and it can be recycled like recycled plastic enamel. These properties are one of the main reasons for its been widely used.