This self-inflating, water-resistant seat cushion allows you to sit on a cushion of air instead. With the Bunsaverâ??s unique valve system, you can inflate, adjust, or deflate the seat with a simple turn of the valve. Itâ??s equipped with an elastic strap and adjustable snap hook for easy access when sitting or walking. This essential hunting accessory also works great as a stadium seat at sporting events.