They consist of an outer, waterproof shell with a stay - dry inner fabric that is sewn together to form a pocket. (wellnessmama.com)
They consist of an outer waterproof shell and an absorbent insert. (mamanatural.com)
The zip - out liner (which you can wear by itself or layer with the outer waterproof shell for extra warmth) is filled with 90 percent - recycled Thermogreen insulation, and the hooded shell also works on its own for wet days that aren't so cold. (treehugger.com)