They typically use a recycled kraft paper outer surface combined with an interior polyethylene bubble lining. Some listings note the bubble lining is polyethylene sheet and some products are made with 100% recycled material.
Most use a self-seal (self-adhesive) flap for closure. Many also have heat-bonded sides or tamper-evident seals that make openings visible if the envelope is resealed.
Product descriptions specify a bubble lining of 2/16 inch, with an interior bubble-lined wall construction to provide extra protection.
They’re suitable for papers and documents (letters, photographs, paintings) and a variety of small items such as jewelry, stones, coins, and buttons.
Descriptions state the envelopes are water-resistant for rain and snow. Heat-bonded sides plus a self-adhesive/tamper-proof seal are used, and resealing typically shows visible damage.
Yes. The extra-smooth kraft paper outer surface is suitable for handwriting, labeling, and stamping, and is easy for writing on or sticking labels and stamps to.
Protection comes from a multilayer design: a recycled kraft paper outer covering, a bubble-lined interior with air-cellular/strong-bubble technology, and heat-bonded sides plus a secure self-adhesive flap to resist shock, tear, and dust.
