I have heel spurs and the sandals are contoured to alleviate pressure on the heel. I love these chargers, comes with multiple lengths for all different needs and the colors are so cute. My husband works outside in AG and has worn these boots for the past few years. Suction and magnet works great. I had to have them! They are easy on/easy off, which I have been looking for because I wear walking shoes to work and then change to my work shoes, so I wanted shoes that still look good and I didnt have to worry about laces. They dont provide any information on the app so you have to hunt it down yourself. I have tried other HK speakers and amplifiers and I know this is a good company with good quality products. Now they look better, but the comfort has been lost! Waist band to thick.