I used Durex Classic for a long time, but when you are having intercourse for more than 30 min then your erection will not stay at 100% for a long time. This caused my Durex to leave from the top and I had to take another one. With this condom I can have 70-100% erection and the condom does not leave. The feeling is very good and the condom unrolls very easily and stays even if I have lubricant from the inside. Very good quality without any incidents. It is a standard for me!