bubble envelope

Available sizes include: outside 8.5" × 14.5" with inside (useful) 8.5" × 13.5"; outside 9.5" × 14.5" with inside 9.5" × 13.5"; and outside 8.5" × 12" with inside 8.5" × 11".

The bubble lining is 2/16 inch thick (equivalent to 1/8 inch).

They have a kraft paper exterior and an interior bubble layer made from polyethylene (bubble wrap). Some listings also note the materials include recycled content.

They use a self-adhesive, self-seal flap designed to create a tamper-evident closure.

Pack options shown include 10, 25, 50, and 100 mailers per pack.

Common uses listed include mailing papers and documents, photographs and small artworks, jewelry, coins and stones, buttons, and other small items.

The listed item weights range from about 0.19 ounces up to 3.78 ounces across the available options.

They feature bubble-lined (air-cell) walls for impact protection, water-resistant kraft exterior, and a heat-bonded/self-seal flap that provides a tamper-evident seal to help keep contents secure and dry.

The kraft paper surface is described as extra smooth and suitable for handwriting, labeling, and stamping, making them easy to write on.