I am on my second H.S. Strut inflatable seat cushion. The first one lasted a couple seasons before it went flat, think I sat it on a thorn to finish it off though. The one I have now has been through 2 seasons and it still holds air just fine. I may not use it all the time this year because I finally broke down and bought a Mossy Oak NWTF Super Elite II vest. It has a nice big cushion already on it so I won' t need the H.S. cushion while wearing the vest. If it gets warm out, I' ll probably abandon the vest for something cooler like a fanny pack, then I' ll take the inflatable cushion to sit on. The H.S. cushion is lightweight and easy to carry and is a worthwhile cushion if you can keep air in them!