Prorapdiaper wraps are made with soft laminated knit polyester. They have double gussets around the legs that are non-binding to preventleaks. These soft durable covers run true to size and work great with prefolddiapers, pinned and un-pinned. The Waterproofinstitutional “laundry safe” hook and loop (a Velcro type closure) is placed lower on the cover to avoid scratching your baby’s skin. They are made in USA.