3 Layer Construction, Gel, and Memory Foam Very easy to Install on the seat. Breathable cover that won't get Hot in the sun Comfortable in any weather. You can strap it very easily and then remove it when not needed. Detachable style Quick Connect Straps Included Takes the vibration and sore spots off. Comfortable won’t get too hot or too cold. Slip resistance bottom to Keep Pad from moving on the seat. Shipped daily from Kansas City, Designed and tested in the USA 30 Day Money Back Warranty, If you don't like we will take it back and give your money back