Most of the bag that I ordered were in very good to excellent condition. There were a few with rubbed or slashed sides for one reason or another. I would certainly purchase these again for the HS classes that I teach, considering the price compared to other major specimen retailers. It would be nice if the bag was reclosable somehow, so that any unused specimens could be stored without dessication for make-up labs and/or lab practicals, but I can also understand why it's not (besides, a couple of quart zip bags helps with that). However, the bag they came packed in was very sturdy, and was even enclosed in a second bag for those 'just in case it leaks' type scenarios. Overall, I am happy with this purchase!