When I received my AKG K371's I was disappointed at first, since it was nearly impossible to get a good fit, especially with glasses. After reading others having success with these earpads I decided to give them a try before returning my headphones. I was skeptical at first, bit once I fitted these and tried them on I was amazed. In my opinion, these should've come with the K371's to begin with, the thicker and stiffer cushion makes the fit WAY more reliable. No more missing bass due to leakage, I can fully enjoy my headphones. I'm so glad I gave these a shot, would highly recommend if you have similar experience with bad fitment.