I will be returning this shoe for that reason and fact that heel lifts out of the shoe when I walk. For example youll turn on noise cancellation by mistake instead of turning off the headset. Wer den Weg geht sollte die Lüfter auf jeden Fall vernünftig einstellen um ein ständiges Hochtouren, wegen den Temperaturspitzen, zu vermeiden. These shoes arrived today and I?m blown away by the quality. More quality than I expected for the price. You can also see the charging light perfectly clear in the front. I would rate these 3 stars, but I?m hoping they stretch out and break in with time, so I gave them 4. Anything by Heather Nicholds is done well - and this new offering is no different. Figment is excellent and the improvements in design of the buds, but more importantly the case make these worthwhile. I wanted to try to move to more eco-friendly ways of doing laundry.