The shoes weren't sewn directly into any of them and it looks like a terrible factory defect.
Because one of them is on one of the shoes on the inside where it looks like it sticks out very, very high, so when you walk it really bugs you and doesn't bother you like every other artist.
Pros
My 2nd pair, I wore the 1st pair - I can't give a better recommendation than this.
Cons
Shoes may not be very breathable, resulting in sweaty feet.