The S1 Lifer Helmet is fully certified to help protect against multiple low impacts and single high impacts.
S1 Lifer Helmet Specs: 
• Specially formulated EPS Fusion Foam
• Certified Multi-Impact (ASTM)
• Certified High Impact (CPSC)
• 5x More Protective Than Regular Skate Helmet
• Deep Fit Design
 
The S1 Lifer Helmet is one of the best fitting and safest helmets for Skateboarding, Longboarding, BMX, Scootering, Roller Skating and Roller Derby. The Lifer Helmet uses a specially formulated EPS Fusion Foam which allows it to protect your head from multiple low force impacts as well as high impacts. The Lifer Helmet is a certified "multi-impact" helmet and is up to 5x more protective than the soft foam non-certified helmets.  The Lifer helmet is a break through design combining the added safety of a CPSC and ASTM certified helmet with the comfort and fit of a non-certified helmet. The S1 Lifer Helmet is the best fitting High impact and Multiple Impact helmet on the market.