Cushioned mailers offer twice the protection of other bubble mailers with 5/16 high Bubble Wrap cushioning and strong coextruded white film on the outside. Sealed Air s Barrier Bubble technology creates a quick-to-pack and cost-saving alternative to cartons. Multi-layer coextruded film provides optimum resistance to moisture punctures and tears especially for heavier items. Envelopes are tamper-evident and offer an easy closure. Simply peel away liner and seal. Seamless bottom increases cushioning protection and strength.