Simple design just the right size and weight. If anything the bubble wrap cushions could be slightly larger and sometimes my wife needs to use extra bubble wrap to protect what she is shipping since it is more delicate than what my wife feels the shipper will protect. Her business is one of a kind artisan jewelry which she ships around the world. Even though she insures the majority of her shipments it would obviously be better if damage was not an issue. Also the paper itself often tears when using a Sharpie to write in the address. This stock could also benefit with a little more reinforcement.
As a small publisher I use these envelopes on a daily basis to mail single books to end users. I use the post office's "media mail" for the books and the cost savings over using a box is significant! I highly recommend these envelopes to anyone shipping small quantities of items that need protection and do not want to spend a fortune on the extra weight of the box. It is also easy to use reliable and never need extra sealant to keep it closed. It is also easy to use shipping labels or in my case hand-write the addressee.