They also sent me a black and a white pair of shoe strings for an option too. Wish I could get my money back but who goes through the time to actually ship back a cheap item. Suuuuuuper cómodos, como tienen silicón en el talón por dentro no se resbalan para nada, no son delgados sino iguales a un calcetín normal lo que los hace tan cómodos. Product came without necessary pieces to complete install. Woosh! Doesnt bother me but it might bother others who put it jn their pockets. You can?t just put it in your bag. Audio for speech podcasts was normal. The connectors are just plastic, and are slightly undersized so that you have to really force them onto the metal tube supports. I wear a shoe size 6.