I dont know what that means, because I have bought those shoes based on that review but could not wear the shoes for very long and couldnt wait to get them off my feet. Assembled product is stable and large/solid enough for me to do pullups, chinups and pushups (Im 511" and 165 pounds). Ordered the blue and hoping other color are still available! These are cute, Im not sure if they will be comfortable because the sizing is WAY off and Ill have to exchange. Unlike one of the other reviewers, this one was the best for background noise cancellation, and among three options won out for sound quality on a conference call. I just thought that a company that makes such high caliber footwear would not catch this. Also, they are on the heavy side, but I guess that comes with the durability of the sole. I searched all over to find a home replacement for my MX-pro series that is left locked in my office. Youll notice as a whole they just dont seem to satisfy any portion of your needs. did you not watch a single YouTube review before making these over priced headphones? I dont mind paying so much as long as I get a very good quality headset.