A comfortable saddle is important for covering some serious miles.
The stock XR650R seat is a bit thin and tough on the rear.
If you aren’t up to putting on your own foam and cover you have a few options.
SDG Seats makes a quality product with a tough black cover and can be purchased in a ‘tall’ version. The width is similar to that of the stock bike.
If you demand a high end quality seat Renazco will built you a custom unit. They’ll fit it to your specifications and even use your choice of materials and colors. I’ve never heard one bad thing about Renazco seats, only rave reviews.