I have worn them all day and gone up and down stairs all day for my job and they do not hurt at all! This was the size I needed which was harder to find than I thought, very easy to install and seems to be sturdy enough to hold a few bigger items like towels and jackets I think between my daughters and I we have 4 of these. These are like the First ones LG put out for Verizon. The crocs r nice but the fit is big. It almost hurts if you turn them up too loud. My grandson was surprised with this present didn?t know he was getting it *50G de aceleración. These are really cute and comfortable. Also be aware that you will be waiting some time for delivery!