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COVID-19 Updates, Delays & Curbside Pickup

S1 RAD Liners 1S1 RAD Liners 2

S1 RAD Liners are an impact reducing sizing liner that Reduce Absorb and Disperse impact energy away from the head when impacted.

Recommended for:
  • S1 Lifer helmets only - Mini, Standard and Mega
  • Skaters looking for even better protection from their S! helmet

Not usually recommended for:
  • Any other brand of skate helmet

  • One pair of liners - 1 front, 1 rear
  • Lifer Sizing: XSmall 20.5", Small 21", Medium 21.5", Large 22", X-Large 22.5"
  • Lifer Mega sizing: Small 24", Medium 24.5", Large 25", X-Large 25.5"
  • Lifer Mini sizing: XSmall 18.5", Small 19", Medium 19.5", Large 20", XLarge 20.5"

Note: RAD Liners are sized just like the standard sizing Liners and fit into all S1 Lifer Helmets and are covered in a sweat absorbing, hand washable terry cloth fabric.

Standard stock item. Usually ships same or next business day.

Available Options:



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