What Pros Wear: What Helmet are the Bosa Brothers Wearing?
Vicis high-tech helmets take top 3 spots in NFL's annual performance ranking of equipment – GeekWire
VICIS has top 3 helmets in survey including lineman model
VICIS and Carbon Combine Technologies to Create Top-Rated Helmets - Carbon
NFL helmet safety testing results: Vicis ranks first again for its high-tech head protector – GeekWire
Several NFLers to wear new VICIS helmet designed for linemen
Here's What We Know About Aaron Rodgers' NFL Helmets - EssentiallySports
How often do NFL helmets get replaced and repainted? - Quora
NFL to test new helmet designed specifically for linemen - Footballscoop