Concussions are a huge risk when playing football. I wanted to share some of the top rated helmets that protect against concussions that are at a reasonable price. Safety is the most important thing when playing and I HIGHLY recommend buying a protective helmet if your team does not provide a top rated helmet.
Best value for the concussion risk reduction: Schutt Sports 789102 AiR XP

This helmet is priced in the low $200 range and provides a 5 STAR rating, out of 5, in concussion reduction rating. It is also a good looking helmet style wise and for comfort. This is the most normal looking 5 STAR helmet if you are not into the robot and crazy looking helmet designs. Offers great value for the rating.
Newest and best technology: Riddell Speedflex

The Speed Flex is the newest and best technology from Riddell, also 5 STAR rating. I wore the Riddell Revolution helmet in high school and it was the most comfortable helmet I have ever had on. Many reviews say that this is the most comfortable helmet out now. The price is higher, in the $350 dollar range.
*STAR Ratings based on the Virginia Tech Helmet Ratings with over 10 years of helmet research ratings page