Cushioned Mailer is lightweight for postage savings. Strong, satin gold, outer Kraft material is made with a high percentage of recycled material. Cushioned mailer offers easy closure, an interior layer of 3/16" high Barrier Bubble and seamless bottom for added cushioning and strength. Simply peel away the liner and seal. Mailers are dust-free and lint-free and feature heat-seal seams that won't burst.