It should be noted that the website doesn't give you a clue about with foam is similar to OEM . So your buying blind here. I bought the medium and found it was just like the OEM seat. I was looking for something softer. Doing a lot of road riding sitting on a seat that's as hard as a 2x6 gets old fast. I ordered the soft one and will return the medium when it arrives. Some notation on density would have helped eliminate the extra time and return cost. I'm glad this company exists fair price for seat foam replacement.