If you're looking for a comfortable seat for an exercise bike, there are a few things to keep in mind. First, you'll want to make sure that the seat is the right size for you. It should be large enough to support your hips and buttocks, but not so large that it's uncomfortable. Second, the seat should be well-padded to provide cushioning and support. A thick layer of foam padding is usually best. Third, the seat should have a smooth surface to prevent chafing and discomfort. Finally, the seat should be adjustable so that you can find the perfect position for your body type.