Reduces impact up to 33% & HARM up to 40%- Augments existing helmets to make them pliable and able to more effectively manage energy, addressing the impact severity of blows.- Pads blows to knees, hands, abdomen, etc. during inside run and position drills.- Reduces sound and vibrational frequencies.- Reduces radiant heat up to 20°- Preserves helmets & decals for gameday The Guardian Cap is the leading soft-shell helmet cover engineered for impact reduction. It brings a padded, soft-shell layer to the outside of the decades old hard-shell helmet and reduces impact of daily hits. Perfect for interior position groups. Worn by 500+ colleges, 5000+ high schools, 1000+ youth programs, All 32 NFL Teams, and All 9 CFL Teams Mandated by the NFL for all 2024 contact practices. Additionally, all NFL players are now permitted to wear Guardian Caps during games for the 2024 season.