I am using a Uvex X8 ski helmet, with a pair of Uvex goggles. The back is curved and trimed out and I have not had an issue with keeping my head up, or feeling a pinch point at the neck. I clip a flasher with two AAs to the goggle strap and this shifts balance of the helmet to the rear. I wear a thin fleace hat to sug the fit and have not had a problem with becoming too sweaty when riding. The vents are small, but it is really nice to be sheilded from the wind.
Not being build to be lightweight or full of holes, I am confident that it can take a impact as good as, or better than many summer bike helmets.