This padded envelopes is very light, it can provide outstanding low cost shipping protection for a wide variety of products. The surface of this bubble envelopes made from co-extrusion film. The interior built with bubble lined wall construction for extra protection during transit, ensure the packages arrive in great condition. The self-seal closure provides a reliable, tamper-evident tight seal to secure all enclosures. Extra smooth surface is perfect for handwriting, labeling and stamping.