Shell game

NFL players can wear any helmet that meets the requirements the league has adopted from the National Operating Committee on Standards for Athletic Equipment. Still, most guys choose Riddell, which pays to be the league's official helmet. Even NFL advisers agree that open competition among makers would outweigh the benefits of official helmet fees. "It should be based on research, not financial arrangements," says Kevin Guskiewicz, who chairs the Subcommittee on Safety Equipment and Playing Rules. We concur! And so we give you an open competition. Here are three manufacturers and the different ways each promotes safety.

MAKE: Riddell
MODEL: Revolution 360 (debuts in January)

TECHNOLOGY: Riddell favors telemetric feedback. Data from its Head Impact Telemetry System (HITS), which uses sensors to measure the intensity and location of blows, informed the design. Most significant tweak: more protection in front, where 70% of concussive impacts occur.
COMPANY LINE: "Technology that actively reports head impact information from the field will be the next leap forward," says Thad Ide, VP of research and development.
USERS: About 75% of players wear Riddell, the NFL's official helmet through 2014.

MAKE: Schutt

MODEL: Air Series
TECHNOLOGY: Schutt focuses on materials. A conical padding system made from thermoplastic urethane (TPU) is more shock absorbent and resilient than foam. And a thicker shell helps to deflect impacts.
COMPANY LINE: "We're bound
to relentless innovation,"says president Robert Erb, "but I don't know if there are a lot of places you can go other than lighter and stronger materials."
USERS: Around 25% of the league, including Eli Manning, DeSean Jackson and Chris Johnson.

MAKE: Xenith

rethinking infrastructure. To address repeated lower-impact hits, it has implemented a shock bonnet lining that attaches to
the interior of the shell and features 18 shock-absorbing, puck-shaped pads.
COMPANY LINE: "We've really paid a lot of attention not only to the high-energy but also to the medium- and low-energy hits," says founder Vin Ferrara. "If you look at data of what players experience, it has overwhelmingly shifted to those hits."
USERS: Matt Birk, Dallas Clark, Josh Cribbs, Ryan Fitzpatrick, Jeff Saturday, Ricky Williams