skynscuba
Contributor
If it is just the neck which is too tight, you might be able to stretch it. My girlfriend was unhappy with the tightness of a Henderson Hyperstretch 5mm suit neck. I put on her suit for a few minutes, and then the neck was okay for her. My neck is 3 inches larger than hers. Maybe you could strech the neck around something a bit larger than your own, such as a mixing bowl, small scuba tank, etc. Maybe someone else here knows whether that is a bad idea.