Kraft paper bubble bag, also known as kraft paper envelope or air bubble courier bag, is a convenient and efficient packaging material. It is composed of kraft paper and bubble film with the function of waterproof, cushioning, shock-absorbing, self-sealing, etc. Kraft bubble bags are widely used for storing or mailing items such as electronic products, integrated circuit boards, optical lenses, books, certificates, documents, clothes, cosmetics and so on.
