I used them frequently to run two miles and youd forget theyre in. At first I thought maybe I bought some that were too small because it was so difficult to get them on the brick, however when comparing their height to the height of the brick they appeared to be the exact same size. The sound quality: they are better than anything else Shure makes or AKG or Westone or UE. the item arrieved fast. My fiance and I have rented our house for 2 years and there were new cabinets installed but the shelves were not put up and we didnt see any hardware laying around. When the sole finally gives out I will certainly be buying another pair. Update- 2 weeks & 2 washes later, these things are shredding daily. En relación al producto, me parecieron unos audífonos muy cómodos. I’ve included photos to show my one complaint about the last two pairs of the Keen Men’s Brixen shoes. Overall I would recommend this product.