Skip to content

S1 Lifer Sizing Liner


These liners are compatible with all S1 helmets, and allow you to freshen up your old liners and/or change to a different size. Fits the Lifer, and Mini Lifer.

To determine which size you need, you can measure the circumference of your head using a flexible tape measure. If you don't have a tape measure, you can use a string, or even your phone charger cable will work! Measure from the middle of your forehead, just above the eyebrows. Measure around your head, above the ears, and back to the centre of your forehead. Once you have your measurement, refer to the info below to select the appropriate size.

  • 20.5" - XS (Grey)
  • 21" - Small (Red)
  • 21.5" - Medium (Gold)
  • 22" - Large (Black)
  • 22.5" - X-Large (Green)
  • 23" - 2XL (Blue)
  • 23.5" - 3XL (Purple)