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The S1 Lifer Helmet is constructed with EPS Fusion Foam and is 5x more protective than soft foam skate helmets.
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Multiple Impact Test (ASTM) 10 mph impact Drop Height: 4 ft The Same helmet is impacted 3x in the same location. In order to pass this test, the helmet must reduce the peak acceleration of all 3 impacts to under 300 G's. Anything over 300 G's will cause a severe concussion and possible TBI (traumatic brain injury) or death. Soft Foam Helmet : FAIL S1 Lifer Helmet: PASS
  High Impact Test (CPSC) 14 mph Impact Drop Height: 7 ft The Same helmet is impacted 4x in different locations.  In order to pass this test, the the helmet must reduce the peak acceleration of all 4 impacts to under 300 G's. Anything over 300 G's will cause a severe concussion and possible TBI (traumatic brain injury) or death. Soft Foam Helmet : FAIL S1 Lifer Helmet: PASS
 
 
Multiple Impact Helmet Test
  
 
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 Multiple Impact Helmet Test from s-one helmet co / s1helmets on Vimeo.