Super large where the mouse could slide all around. The part that bothers the most is that these shoes seal off the air entirely, my feet could not get any air. Sadly, after about three months of use, the cable began losing its connection with my iPhone. So I felt confident in ordering these shoes based on the description page and the fact that it stated FREE RETURNS. In summary, while very pleased with my purchase, they did take extra steps to get working to their full potential (on PC) and I would say that the price would be a tad high for the discerning user. When you need to recharge them they stay in the charger inside this case for the charger. I have a cheap $5 pair that are way more comfortable. I bought this leash for my Holbrook metal with Polarized Prizm lenses. Make sure you order the correct size. Too small for lipstick.