We purchased these to send calendars to friends and family. The bubble pack provides just enough protection to prevent the binding from being damaged in shipment. The envelopes are simple to use with a peal off strip exposing the adhesive sealing band. Much better then licking glue strips as on standard envelopes. These compare quite highly with the name brand envelopes that sell for much more. Having to purchase only 12 mailers was also better for our pocket books. The 9½" x 13½" is perfect for bound 8½" x 11 documents.
I would definitely recommend these Bubble Wrap cushioned mailing envelopes. I use them at work for mailing things out and they are the best. The peel and strip adhesive flap allows for fast processing and the plastic bubble insides are strong and hold up when other brands sometimes don't. The adhesive is strong enough to retain its hold as well and since the sticky strip extends all the way to the edges of the flap there are no loose ends to worry about getting caught in postal equipment.