Why C-Flap helmet add-ons are causing safety flap

... Mike Trout wears a C-flap. Bryce Harper does, too. They’re among 10 players in Tuesday’s MLB All-Star Game who wear attachments to their batting helmets that are designed to protect a batter’s cheek and jaw.

But your Little Leaguer likely can’t wear one — and the reason is a whole other kind of flap.

The National Operating Committee on Standards for Athletic Equipment says add-ons to athletic helmets potentially void manufacturer safety certifications. Amateur baseball governing bodies by and large abide by NOCSAE standards. And that means their players are effectively forbidden from flapping ...