[edit 08/2020]Habe nach einem weiteren Jahr Anfang 2020 aus Kulanz ein paar neue Ohrpolster von Sennheiser bekommen (das mittlerweile 3. I liked the quality of this shoes. They don?t stay on feet well, causing constant tripping when walking or going up the stairs. There?s no way to adjust for this. The wrap-around ankle strap makes the sandals feel secure and its really cute. Also, there is a secondary bolt for tightening the head that I removed and put a quick release bolt and lever from an old seat tube clamp though there which holds the head in place while Im messing with the angles and aforementioned pin. I would expect a refund since the shoes has not lasted even a year for the price I paid for this product. I have NEVER had them slip because I walked through a wet patch. After two days in those, these arrived on time from Amazon and I slipped them on and just about fell outta my seat! The shoes feel clunky because the fit is more wide, less fitted.