- Waterproof - These polymailers are thick and do not stretch or tear easily. - Self seal with strong adhesive - Size: 10”x13” (perfect for a wide range of items, including socks, t-shirts, swimsuits, sweatshirts, towels, bedding, jewelry, accessories, and more) Add a touch of sparkle while shipping packages in the holiday season. ALL Items come from a smoke-free / pet-free home I’m open to offers. Please check out my other listings to bundle for a discount, thank you! Questions? Leave a comment below! New to Poshmark? Use code DA_FINDS for $10 off your first purchase!!