on a month long, 8,600 mile (13,840 km) trip across Canada and the US and it performed admirably. I rarely feel the need to tighten the straps with greater force than what I can muster with my hand. Durable. The earbuds came fully charged and paired to my phone within seconds without any issues. My son was miserable trying to fit in every other shoe I had ever purchased for him until I found these about 8 years ago. I would not recommend these to anyone who is on their feet all day. BUT the dual sided (or double sided) attachment for hard to reach sensitive skin areas is excellent! I did need help because my arm strength sucks but if I was swoll I could do this on my own, no prablem. I have wasted money on over the door shoe racks that were either too small to properly hold up shoes or would rip after a few uses, but not this one. So you will never get an "accurate"/audiophile sound out of these, but you can get a decent and engaging sound that I find entertaining to just listen to.