5 but read the reviews and sized down. They fit as expected and have lots of cushion and wash well. The characters were all great and consistent to themselves which is always important, and there was nothing inherently wrong in the plot of this book but it just failed to launch for me. They feel incredibly light weight, cheap and flimsy feeling, not at all what one expects in this price range. I like how they also have a line of other tools that use the same battery pack. I use these with some warming cream and with the combination, I really do sweat. These headphone will likely replace my daily use Zero Audio Carbo Tenores just because I need the convenience of cordless. Im always looking! I prefer a little buzz. Easy to mount on my gravel bike and looks great.