16 Introducing our Poly Mailers, the perfect choice for sending clothing, small packages and other items that need extra protection during shipment. These mailers are incredibly strong and feature a durable adhesive closure to ensure a secure seal every time. They are waterproof, making them ideal for shipping items in wet conditions. Plus, they come in a variety of sizes, making them perfect for small businesses and home use. With our Poly Mailers, you can be sure your items will arrive safe and sound