I even got complimented on these shoes by a man! I bought these by recommendation for working from home and have been very pleased. This is a simple, portable BT speaker with phenomenal sound! Otherwise, be aware these are very small and have a mild tendency to ride forward on the foot if youre too active. Says this was a size us 14 but no more like a size 13. In fact, the liner is super easy to remove and presumably replace when/if it gets too worn or smelly. I am not going to the trouble of finding out so will be returning them for a refund. This was easier than using wired ear buds attached to both me and a device all the while pedaling. Since my kitchen is very small, its in my entry way, right outside of the kitchen and fits perfectly. No ventilation whatsoever and they seem much more narrow that the clogs, so they are snug on the sides but have heel/toe movement.