DURABLE: Fully laminated kraft/bubble provides rugged durability and better protection for enclosed product SEAL: Hot melt self-seal closure helps ensure a tamper-evident seal and content security SHOCK ABSORBING: 1/2” fins on 3 sides and flap of bag help absorb shock EASY FILL: High slip lining allows easier product insertion and extraction MULTIPACK: 100 Pack of bubble lined mailers Outstanding low cost shipping protection for a wide variety of products; Made from golden kraft paper with a high slip bubble lining. Peel and Seal closure and tamper resistant 3 side finned design provides added protection