Since I started serious running 3 and a half years ago I have been plagued with serious bleeding a through friction in this area. I even started wearing black T shirts so it wouldn't show. I tried very thing including plasters and creams, all to no avail. Someone recommended NipEAZE and put simply it totally works. I just bung then on , it stays where it's supposed to (none have ever come off during running) and totally solves the problem. I have now run 3 marathons with them!