I wasnt about to risk damaging my headset trying to remove them so I am returning them. You won?t have to order a size up if you have large feet. Im so thrilled that they fit my husbands feet. Which headphone do I use the most, the MT5. Top and bottom piece does go on separately and enough space in between for opening and closing. Complete lack of contour underfoot. Just refer to the video. The sandal is comfortable, fits well, feels good. The sound is very good but the only complaint is that everyone can hear what Im listening to even if the volume isnt on so high. I like BV products for their design, durability and (importantly) their cost.