These are a must That being said, it does not affect the performance or obscure the stats I wish to see whilst cycling. Dieser Lautsprecher ist ein klangliches Meisterwerk! I have flip flops that are more comfortable. Due to the fabric they?re made out of, over time they start to stretch so I found myself adjusting the laces to tie them every morning and eventually I could even have to re-tie my shoes in the middle of my shift because I could feel them getting lose, keep in mind this was after maybe 8-12 months after wearing them 5 days per weeks so I?d say that?s the life time of a work shoe. These did have a chemical smell when I first received them but it went away after a couple of days. Android users - get Jabra Elite 75t. Will be returning them asap. Only issue so far is the mic placement which is very close to the ear. They do not squeak, they are soft and perfect for wide feet.