Keeps things together and secure. Memory foam is supposed to go back to its original shape when it is no longer compressed. Klar, man bekommt hier für einen 400 EUR Kopfhörer ?lediglich? den Sound auf dem Niveau eines Beyerdynamic DT880 (welcher aber auch der subjektiv beste Kopfhörer bei den Hörern für unter 300 EUR ist). Buy at your own discretion. They have a great sound and are well made. Fast delivered and very good quality. I love the color, and they feel as comfortable as other croc sandals I have, which I can wear alllll day. Yes I would buy this cabinet again if needed. The upper felt comfy on the first ride with no need for break-in. I give it 2 stars instead of 1 because I know the quality of these sandals are really good, its just the width that is unacceptable.