The Jackson Kayak Sweet Cheeks Seat Pad is a universal fitting bean-bag style seat pad that will work in any kayak. Simply strap the bag around the seat mounts, sit in the boat, wiggle around, and then suck the air out of the tube valve to create a custom fit seat pad. Includes peel & stick velcro pads that attach to your seat to prevent slipping. A simple and comfortable solution for any sit-inside whitewater, recreational or touring kayak. Use the 100 (about .75" thick) for most applications or the thicker 200 (approx 1.5" thick) if you want a higher center of gravity for playboating, or feel as if you're sitting too low in any kayak.