The Skydex Convoy Seat Cushion is designed to reduce the negative effects of impacts and vibration felt while offering a comfortable cushion enhancement to improve the feal of your seat over an extended period of time. Features Skydex's patented technology. -Absorbs impact, shock and vibration -Portable and lightweight, includes carrying handle -Easy to clean -Open airflow design to mitigate heat build up (also protects against otherwise cold seating surfaces) http://www.skydex.com/skydex-corporate-information Great for cars, boats, bleachers, stadium seats.... $195US. Get it here for a lot less. Cash only please, you pick up. Please see my other items for sale. Thanks for looking. ***If contacting me by email, please include your phone number so I can call/text you, or check your Email Spam Folder. I reply quickly, but it seems my emails may be going to interested parties spam folder. Thanks