I have so many pairs of sandals, sneakers, boots, you name it. We had to fiddle with the cord to get the sound just right. 5mm thick, any thicker and the mic probably would not plug in all the way. The price is ridiculously high for 3 foam sets but they definitely work. He?s also rough on his shoes and they are holding up. Anyway, back to the H11 Pro Gaming Headset, my son loves so many things about his NEW PS4 Headset with a microphone. A bit heavy and the screws they provide barely go through the wallboard. I am sated with this end of journey. Connectivity - excellent. It?s an attractive sandal but it has no way to adjust the straps at the front of the foot like the Tirra model.