50 - #2 8.5"x12" Poly Bubble Mailers Padded Envelopes Our poly bubble mailers are unique, lightweight padded mailers made from a durable, moisture resistant, multi-layer blend of polyethylene film. The film is laminated to a resilient, cushioning bubble material for added protection. Durable and moisture-resistant, with exceptional puncture resistance, tear strength, and cushioning performance The self-seal closure provides a reliable, tamper-evident seal to secure all enclosures. The opaque, bright white exterior film creates a crisp, professional image for your company. The Patented tear opening system is the latest feature of our Mailer. This allows the mailer to be opened easily by the recipient but does not compromise the integrity of the mailer or the security of the contents.