Get sturdy, recyclable, FSC Certified, and naturally compostable corrugated shipping boxes at supr low prices. Mailer boxes come in 24 versatile sizes and 15 vibrant colors as sustainable packaging essential for all your shipping needs. Key Features: Supr Design: No Supr Pack branding anywhere on the mailing box. If you are looking for custom mailer boxes, click here. Supr Quality: Eco-friendly Shipping Boxes are made of 30% recycled material - E flute (also known as recycled corrugate or corrugated fiberboard or cardboard), Uncoated, Matte finish, Sturdy & Writable. Custom Size & Color: For custom sizes and colors, the minimum order quantity starts at 500-1,000 boxes, with a lead time of 7-8 weeks. Get in touch with us for the quotation. Thickness- Mailer Boxes come with a thickness of 1.5mm - 1.6mm (based on the size). Supr usage: Use Eco-friendly Mailer Boxes to ship your products in sturdy packaging. Cardboard Mailer Boxes come in all different sizes to pack your Clothing, Apparel, Cosmetics, Books, Collectibles, accessories & stationery.  Click Here to read the Refund, Return & Exchange Policy