5, but have one pair of 7s and they feel a bit too boat like, and one 6 (as these are), and this pair feels spot on. Love the deep brown color-woukd go well with everything. Definitely a step up in quality from the 500 series one. It didnt fit snugly around my ankle. There are plenty more to choose from. This is a remarkable speaker, I have been listening to it exclusively since I got it 4-5 days ago, and I must say, I am VERY IMPRESSED. DO NOT buy this cord! For readers who are not aware, there is a fundamental difference between a dynamic microphone such as the SM58 and a condenser microphone. They are just basically scratched at the location where they should be cut. So if you don?t mind it squeezing you up a bit order a size up, if you want to feel a bit more comfortable in it and carry most of your weight in your tummy like me order 2 sizes up.