Our Earth Cruiser saddles are not just great-looking —they’re extraordinarily comfortable as well. Though the size and shape is clearly generous, we’ve also molded a channel into the top of the saddle to relieve sitting pressure and used high-quality memory or polyurethane foam for the supporting mattress. Memory foam (on the EC1 and 3) was originally developed by NASA and is now used extensively for medical applications. It is much denser than the foams ordinarily used in saddles, which makes it more supportive and more comfortable.