The Air Gel is a great mid-priced cushion for riders looking with multiple cushion needs.
Three layers of polyurethane
Gel pads inserted inside each individual air cell
Use without air when you want to feel 100% "close to the bike" with some additional cushioning
The Smart is 39.5cm x 36cm or 15.5" x 14"
The Sport is 31cm x 31cm or 12.5" x 12.5"
The Pillion is 22cm x 29cm or 9" x 11"