we were nervous how the Sunnyglade would hold up in the wind. I wouldn’t rely on the lil screws that hold it together and expect to carry a load. I should not have been. It has all foam sole so i dont know about how long wld they last if you use them for running on pavement or road but for casual use they are great. They breathe nicely too so my feet dont sweat. The 4 was perfect They are soft I usually have problems with shoes because they cause sore spots all over; this you barely feel them. You won’t get better sound quality for the money. First, I wouldn’t say I’m an audiophile, but I think I have a pretty good ear. Good value IMO.