Memory form sole perfectly wraps your feet, while sparkling accent gives a sense of classy design. Kind of weird, reminded me of Biology class. The product description says in one paragraph that the slippers are "premium suede" and a few paragraphs later states that the slippers are made with a "machine washable fabric. I also gave the Sennheisers the head shake test and they didn?t move. They are completely wearable and I will wear them on my holidays. thanks for letting me know how much I could have paid ! And they do need some breaking in, they are pretty flat and kind of stiff at first, making a clomp" sound as you walk. Comparing it to my $20 headset, the only thing better is the wearing comfort, and no improvement in audio at all. However, what I like the most about the X800M2 over the X700 is that the unit, being a way heavier and solid unit, runs quieter. Comfortable and appears well made.