There are much better options but this will do for short trips.
I used this item for several trips. Neoprene isn't the greatest insulator and I find that the ice in the little pouches only stayed frozen and cold for up to 4 hours or so. I switched over to a Frio water activated pouch for insulin pens and find that, while not as cold, it keeps stuff cool for well in excess of 24 hours. However, I had no trouble with TSA with this pouch and if I were only doing short trips and needed to keep insulin at refrigeration temperatures, it would work just fine.
Rating: 3 stars