Mail Lite protective postal bags are lined with Aircap bubble material with a special air retention barrier to seal every bubble against air loss for high performance cushioning. Mail Lite are easy to write on, with excellent label adhesion.All Mail Lite bags have a self seal strip on the lip, after filling remove the release tape and fold over the flap to make a permanent seal. Each envelope has a unique tear strip for quick and easy opening by the recipient. Mail Lite Bag - D/1 - 175 x 255mm (DVD)