I want to purchase sizing liners for my S1 Lifer Helmet.

S1 Helmets - Replacement Sizing Liners - are color coded so you know
size by color.

Extra Sizing Liners - S1 Lifer Helmet

Grey is XSmall (not shown - 14mm thickness)
Red is Small  (12 mm thickness)
Yellow / Beige is Medium (10mm thickness)
Black is Large (8mm thickness)
Green is X-Large  (6mm thickness)
Blue is 2XL  (4mm thickness)
Purple is 3XL (2mm thickness)

The thinnest liner we have is the Purple 3XL Liner.
The thickest liner we have is the Grey X-Small Liner.

If you want to make your S1 Lifer Helmet fit looser -  replace your liners with a thinner liner.
If you want to make your S1 Lifer Helmet fit tighter - replace your liners with a thicker liner.

Click here to purchase S1 Helmets Liners - http://shop.s1helmets.com/spare-helmet-parts/

S1 Helmets
Customer Service: 310-464-8179
www.s1helmets.com