This is like the older brother of softshell bubble mailers, and therefore are far sturdier and more upfront. You get to see the bubble texture barging out from the inside. Some mental satisfaction guaranteed we say. These lightweight plastic mailer envelopes are always blended with a bubble layer and is not a separate entity. This one too like its younger brother (soft shell bubble mailers), saves you the time and cost of packing extra cushy materials to protect the goods put in them. By now you know that the peel-and-seal flap is a compulsory feature of these mailers and be assured nothing is going to flip or slip.