Tom Brady's longtime Riddell VSR-4 helmet is no longer allowed in the NFL. The New England Patriots quarterback said on WEEI Monday that he "hated to put it on the shelf." ...

It's the older helmets passed down to JV and freshmen players that often score lower. Riddell discontinued making the VSR4 helmet three years ago.

Utilizing six years’ worth of data, the researchers found that the Riddell Revolution helmet reduced concussion risk in players by up to 54 percent compared to the Riddell VSR4.

Riddell, the company that makes most of the helmets worn in the NFL, is urging players to change helmet models after a study found that the model worn by 38 percent of players last season is not ...

The helmet scored the lowest out of 18 helmets tested due to poor protection against linear and rotational acceleration. The Schutt Air Advantage got an “adequate” rating, while the Riddell ...

Players wore a Riddell VSR4 or a Riddell Revolution helmet. These 2 helmets were chosen for comparison because they were the only helmets designed to fit the HIT system, said Dr. Rowson.

Five models — two made by Riddell, two by Schutt and one by Xenith — received four stars. According to Riddell, 38 percent of NFL players wore the low-rated VSR-4 in 2010.

Raking near the bottom of the safety list was the Riddell VSR4, which was the second lowest rated helmet, receiving a marginal "1-star" rating. Virginia Tech researchers also found the Schutte Air ...

According to the study, the Riddell VSR-4 helmet was the only type of helmet to get a one-star rating. Duma deemed it “marginal” in helping to prevent concussions and had a message for schools ...

The players were either wearing a Riddell VSR4 or Riddell Revolution helmet, which the manufacturers say no longer have screws that are typically found in the forehead area of the helmet.