I ordered a size bigger as I know from previous flitflops they are small fitting. I still like amazon though. So Ill say it again, I am feeling pretty good about this device. This is my 1st controller mod and it went so smoothly. I ordered a 3B (since they say to size down 2-3 sizes) and they fit very well. Large fits my wife well. The different colors are also great also for differentiating between other family members AirPods. Its perfect if you dont intend to overclock and just need to change thermal paste after a period. For me when I get headphones I want the hear the instruments especially the bass clearly. One of the connectors didn?t even have threads in it.