I can walk all day on all terrains without any problem. unhappy customer,Sandra LeeUpdate, I still use a clip to charge it, even w/the stronger magnetic charger that FINIS sent. I initially bought the Fifine K670 for all the positive reviews, but after using it in Final Cut Pro X I found the volume to low to be useable. This would be my fourth pair of this exact shoe of I could ever get a size I could wear. Secondly, the color on the website is very different than what I got. I feel that the rack adequately holds all my plates. Width is perfect for his G width feet. Very happy with the shelves. Update:I ended up liking theses more than expected. My PC did not have any 4 channel aux ports (called TRRS - "tip ring ring sleeve"), meaning my headset with mic would not work with the pc.