Our AirJacket® mailers, produced by PAC Worldwide, are the best in the business. The puncture-resistant exterior polyethylene film is laminated to a resilient interior bubble material for cushioning protection and is constructed with a bottom fold and strong side heat seals for superior bursting strength. The pressure sensitive self-seal adhesive closure system is reliable, tamper-evident and easy to use and stays closed through the roughest deliveries. The extra smoooth surface on these bubble envelopes is ideal for handwriting or labeling, and the zip strip will allow your customers to easily open the mailer without compromising the integrity of the mailer or the security of its contents.