But happy so far. It works but I wish the jack was a little longer. Way too extreme for me. it fits on my air 58but it doesnt make a difference same as stock onehyperglides much better than hyperslides Bought this thinking that itd be new but NOPE. May be hard to keep clean though. Overall I am very happy with this and would certainly buy another from this same manufacturer. I was worried about it being too big or overbearing and it was great to hold 9 pairs. I can wear them all day, at the end of the day my feet are happy! The outer material of my Gore-Tex garments that used to soak with water now repels them easily.