First QB helmet designed to help reduce concussions approved by NFL, NFLPA
NFL, players' union approve QB-specific helmet designed to reduce concussions – NBC Sports Philadelphia
NFL to test new helmet designed specifically for linemen - Footballscoop
What are your thoughts on the new VICIS helmets in the NFL? : r/nfl
VICIS 02 First Look! Weight, Cost, Pads, Visors, Safety?
NFL safety: How VICIS' position-specific helmets have become all the rage - The Athletic
VICIS Zero1 top testing helmet NFL
What Pros Wear: Top 5 Helmets Rated by the NFL & NFLPA - What Pros Wear
New 'QB-Specific' Helmets Unveiled, Will Kenny Pickett Wear One? - Steelers Depot
NFL downgrades safety of 9 helmet models used by 18 percent of players - The Athletic
Built By Data: NFL Helmet Innovation
Helmet safety: Inside the complicated equipment industry - Sports Illustrated
VICIS ZERO2 Trench Football Helmet, SC-223-S Facemask Attached, Black, X-Large : Sports & Outdoors
NFL's Safest Helmets Absorb Impact With 3D Printing Instead Of Foam
Digital design, QB investments could aid football helmet safety - ESPN