Zeal X colorful bubble mailer bag, made of high-quality materials, co-extruded film process, lined with full bubbles, with shock absorption effect. Each bubble mail bag contains a powerful self-sealing adhesive strip that simply strips and folds to seal each package safely and securely. These envelope bags are designed with explosion-proof edges and are not easy to tear, so you can rest assured that our padded senders will ensure that your package reaches its destination safely. Padded polyethylene foam mailers are an affordable alternative to standard packaging, and they will help keep your customers' items safe while reducing shipping costs. It's also waterproof, so your package can arrive safely even on rainy days.