Stainless steel
So far it has been pretty good about cracks. There are a few minor ones here and there. Some are from me and some probably from use. The two years that I have used this boat I have used it alot and am really surpirsed it has held up so well. Anyway thanks I'll keep a look out for those spots. It is supposed to have a 10 year hull warranty, is Proline good at honoring that warranty? Thanks
Mark