DetailsGel-filled seat pad with lower back support is the ultimate comfort for long paddles. Soft Lycra is laminated to neoprene seating surface. Non-skid backing on seat bottom. Gel-filled inner core with permanent memory. Benefits include reduced pressure point on kayaker's seat and insulation from a cold seat. Gel-filling distributes pressure evenly. Added comfort improves kayaking experience and increases endurance. The back is 16" by 7" high.