These mailers combine a kraft paper outer surface with an inner bubble lining made from polyethylene; some listings also list polypropylene or polyethylene for the bubble layer or overall envelope construction.
The bubble lining is specified as 2/16 inch, and the mailers use a bubble-lined wall construction for interior padding.
Available pack quantities include 10, 25, 50, and 100 mailers.
They are suitable for mailing papers and documents, letters, photographs, small paintings, and small valuables such as jewelry, stones, coins, and buttons.
Yes — the extra-smooth kraft paper surface and paper covering make it easy to handwrite on the envelope or apply labels, stamps, and other markings.
Descriptions state the mailers are made with recycled kraft paper and that the inner bubble material (polyethylene) is recycled; one listing specifically notes the product is made with 100% recycled material.