... 2 shock resistance 3 recycable 4. OEM Kraft Bubble EnvelopeBubble envelope mailers, fully laminated Kraft and air ... cellular construction provide outstanding protection.Product unique:1.The bubble can protect the goods from damage during the ... , such as paper envelope, international envelopes, bubble envelopes, unusual envelopes, printed envelopes, window envelopes, western style envelopes, etc 2. ...