If you want more comfort under your feet, prepare to buy other insoles to replace the ones that come with these. I noticed that it charged much slower than plugging my phone directly into the wall. If I turned my head too often one ear bud or the other would cut out. Let me just give you first-time Sperry wearers some tips, though. Love the idea that it is re-chargeable via the micro-usb cable, see photo. Sweet Perfect for small and narrow spaces. The instructions in the box suggested a waterproof type sealant be added to the leather but I?ve not done this yet. 5 and ordered a 7 which fits just right. Got these because the original silicon tips would not stay in my ear and were constantly falling out.