The outside of a bubble mailer will either consist of poly or kraft paper. Kraft paper is easy to write on with a pen but isn’t waterproof. Poly exteriors, on the other hand, are harder to write ...

While bubble mailers also have internal bubble wrap, the exterior’s construction can vary. Typically these materials are either kraft paper or plastic, with plastic being more resistant to water ...

Which small bubble mailers are best? Packages come in all shapes and sizes, but when it comes to small-sized packages, they always seem to be the most fragile. Shipping your small, fragile goods ...