no matter if I loosen the toe, it always tightens back up. I will start by saying I was very skeptical of combining high end earphones with a 3D mic, wasn’t quite sure if a product could pull it off, but rest assured Sennheiser did and in a big way. 5 inches from back of heel to the tip of her big toe. Returning & reporting again and this notch is exactly where I want to place the kickstand. it works fine for splitting headphone or speaker audio, but will not function while splitting audio and mic seperatly. Will update in a year or so. After a couple weeks when they get a bit whiffy, I simply pop them in the washer in cold water and let them air dry and they are as good as new. Also the sizes run big I ordered a medium and I wish I would’ve ordered a small. Muyyyyyyy molesta no los pidan y lastima porque esta lindo el zapato