I will have to stick with the models that have heel straps,if I by Birkenstocks Martin I have been searching for a good and sturdy case for my AirPod Max as many are because of the original case it comes with. As product documentation states, its important that the stockings be washed with cool water and dried at cool temperatures. Customer Service is stellar. smaller2. Crossbars do not fit my vehicle. I wore two pairs of socks and ran a blow dryer on the hot setting pointed at the problem area. My next project is to upgrade to all gold hangers. When not it use, it folds against the wall, and is noticeable.