100% BIODEGRADABLE MAILER - Our Biodegradable D2W Poly Mailers are crafted from d2w raw material derived from natural gum, ensuring that they are 100% compostable. These mailers break down completely in home or commercial compost environments within 3-6 months, transforming into fertilizers without leaving any harmful residues. Even in landfills, they will decompose within 15-18 months, making them an environmentally responsible choice for shipping. 100% SAFETY - These eco-friendly mailers have undergone rigorous ecotoxicity testing and are safe for prolonged contact with food items. They are free from organic chlorine and heavy metals, providing peace of mind for businesses and consumers alike. PERFECT SIZE - Measuring 12" x 15.5", these mailers are ideal for shipping a variety of non-breakable items, including clothing, documents, gifts, books, and accessories. Their versatile size makes them a practical solution for all your shipping needs. DURABLE STRETCHY STRONG - Engineered for resilience, these mailers can withstand punctures and stress, ensuring that your items remain secure during transit. The use of high-strength hot melt adhesive means the mailers can only be opened by destruction, providing an added layer of security. Additionally, they can stretch to double their length, showcasing their superior toughness. BETTER BRAND IMAGE - By choosing biodegradable mailers, you enhance your brand's image and demonstrate your commitment to environmental sustainability. Customers will appreciate the use of eco-friendly materials, fostering a sense of social responsibility and quality that can lead to increased customer loyalty and repeat orders. 12x15.5 Inches 100% Biodegradable D2W Poly Mailers, 50pcs Black Compostable Envelopes Shipping Bags, Eco Friendly Waterproof Stretchable Self Sealing Mailing Bags