Got something to pack that doesn’t bend or break? Basically, if you have soft goods or any other item that doesn’t require absolute firmness for shipping, then this is your go-to packaging solution. Don’t mistake the thin board of these smart self-sealing paper mailer envelopes to be stiff, as they are superbly flexible to take the shape of your packed stuff and bestow it with the safety it deserves. Sounds like stretch pants? So, just put it, peel-and-seal, and you are good to go!