Have been utilizing these envelopes for a long time in our office. Unfortunately we noticed with our last shipment that the self stick strip that you peel off has gotten SO much thinner. Also the weight and feel is super thin also. We will continue to use for now and hopefully no more changes are made to what used to be an excellent product.
This product is terrible. The sides come open if you put more than 2 pieces of paper in the envelope- sometimes even one is enough to make it come apart. I had to tape up the sides of the few envelopes I used the day I discovered the problem. Couldn't find my receipt so I had to throw the entire box away.