The number one reason so many individuals give up bicycle riding is SEAT PAIN! This gel bicycle seat cover fits the large size bicycle seats and exercise bikes. Slips over existing seat in seconds! Add that extra comfort you need. Deluxe Gel cushion, Non slip bottom for stability, Locking Drawstring for snug fit and easy removal. Other sizes available. ***Special Note for sizing: This pad will fit seats 33cm wide and 30.5cm front to back, and up to 45.7cm as measured from bottom of one side, over the top of the widest part of seat, to bottom of other side (from A to B, click on small picture). For seats up to 55.9cm (from A to B) purchase this pad and contact Seller to request the X-Large size (no extra charge). The X-Large size also fits Schwinn AirDyne Exercise Bikes and larger seats. The Gel portion of the X-Large Pad is still 30.5cm wide, but the cover will fit the larger seats. The gel still covers the centre of the seat, where you need it the most. **Note on Wider Seats - If you need the gel itself wider than 30.5cm , contact us to be put on the waiting list for our new wider pad now in progress. Please contact us for size questions. Made in USA!