Waterproof mailers combine the protective cushioning of bubble-lined mailing bags with the durable, weather-resistant qualities of polythene mailers. Manufactured with a strong co-extruded 85-micron polythene outer, they offer excellent tear resistance and help protect contents from rain, moisture and general handling during transit. The bubble-lined interior provides added cushioning against knocks and impact, making these mailers ideal for posting a wide range of products that need both water resistance and reliable protection. A lightweight, opaque design and secure self-seal closure also help keep items protected, private and ready for dispatch.