Year Introduced: 2012
Sport: Baseball

They may look clunky and oversized compared to the earlier models, but helmets like the S100 Pro Comp have become nothing short of necessary for baseball players looking to protect their domes. While the original version of the helmet was released in 2003, it wasn't mandatory to wear until this year (although many players opted to wear the helmet last season, marking the S100 Pro Comp's unofficial debut). Good thing too, given that the less-protective models could only withstand ball speeds of up to 68 mph. Unless it's R.A. Dickey throwing at your head, you're probably going to need more help than that.