Versatile self-inflating lumbar air pad brings comfort and support to the place you need it the most, your back. A great addition to any kayak seat. Easy to reach inflation/deflation valve offers fully adjustable control over the feel of your paddling. The self inflating lumbar pad features attractive contrasting panels and an adjustable nylon securing strap enabling it to fit on virtually any kayak seat. To inflate simply open the valve and let the expanding urethane foam draw air into the seat chamber. This must be done without any pressure on the seat pad to insure maximum inflation.