I purchased these for my 8 year old to use for swim team.  He wore them once.  They were poorly constructed.  We tried them on outside the pool.  They stuck to his face and so we thought he was good to go.  They do not stay tight at all.  After every lap he needed to pull the straps.  The straps then pop out of the plastice piece & he needed help to get them back in.  After about 15 minutes of this I went over and brought him his old Speedo goggle.  For a good swim goggle try Speedo Vanquisher, they come in Adult, women and Junior sizes.  Just ordered them for 3 of my kids!