Amazon.com : BIGJIYU 10 Pack Padded Envelopes A4,Bubble Mailers 8.27x11.81 Inches Envelopes Packaging Postage Bags Self-Seal Orange : Office Products

Material:the surface of this padded envelopes a4 made from a durable kraft paper. The interior built with bubble lined wall construction for extra protection during transit, ensure the packages arrive in great condition.
Advantages: Compared to full plastic bags, it saves 50% plastic and is more eco friendly.
Multipurpose Envelopes : These padded envelopes can be used in offices, at home, in shops, schools and everywhere where there is a need.the self-seal closure provides a reliable, tamper-evident tight seal to secure all enclosures. The padded envelopes keep your shipment safe from damage and tampering until delivery. Extra smooth surface is perfect for handwriting, labeling and stamping.
Opaque and Lightweight - These bubble lined envelopes are lightweight and do save your costs. padded envelopes are completely opaque and protect item from prying and curious eyes. You can mail sensitive documents without fear in these bubble mailers.
Service: We stand by the quality of our products and provide super-friendly customer service. For whatever reason you're not happy with the a4 padded envelopes bags, just contact us and let us know! We promise a 30-day money-back guarantee.