Water-Resistant: The mailer's water-resistant properties keep your packages safe from moisture, ensuring your items arrive dry and undamaged. Self-Seal Closure: The convenient self-seal closure eliminates the need for additional tapes and streamlines the packing process, saving you time and effort. Versatile and Customization: The extra smooth surface of the mailer allows for easy handwriting or labeling, making it suitable for a variety of items and personalized branding. Mailer is made from 100% Polyethylene and is completely recyclable.