The helmet liner I purchased was just perfect. I didn’t realize just how bad the other liner was. The foam was disintegrating and I didn’t notice it until I removed my helmet in the kitchen. My wife asked me what was on the floor and when I checked it out, I realized that it was foam from my helmet. I contacted Shoei about the liner and they contacted Helmet House who then emailed me the part number. I received the liner in due time and it’s in the helmet. My helmet fits like it did when it was new. Thanks Helmet House.