Additional seat unit hood & apron pack with soft jersey lining for added warmth and comfort, weather proof hardy outer material. (silvercrossbaby.com)
The soft, polyester - backed outer material is completely waterproof so no other diaper cover is needed. (cozybums.ca)
Along the inside of the front / back of the diaper the polyester outer material is used to create a flap that hides the snaps for the snap - in pad holder. (backtocalley.com)