Im pretty confident in my choice to not have any more kids after this one. My hubby and i are…

Im pretty confident in my choice to not have any more kids after this one. My hubby and i are considering him getting a vasectomy, but I don't think he understands its permanent, yes reversible, but I just feel like he isn't as sure as I am that we don't want any more kids. Anybody had their hubby get one? Does insurance cover it?