FREE: NEW WRAPPED YANKEE CANDLE wax TARTS

USPS does not make there own Bubble mailers that I am aware of. They make a Pre Paied ready post envelope which are expensive and have padding inside. or priority evelopes. Kraft Envelopes are made of thick, durable paper traditionally beige, pre-lined with bubble wrapping paper. Come in multiple sizes and give the option of assorted shipping option. _Hope this information is helpful

This may be true and there may be a company who has keyed the phrase. Whoever the definition of a kraft or craft envelope is:strong paper made from unbleached wood pulp that is naturally brown but may be dyed another color and is frequently used for large envelopes, paper bags, wrapping papers, and toweling. A lighter grade of kraft paper is used for newspapers and food packaging. Kraft, from a German word meaning sturdy, is inexpensive as well as strong. Kraft paper is sometimes used in direct-mail advertising promotions for the outer envelope . Since the envelope is so inexpensive