The S1 Lifer Standard Replacement Liner comes in 7 different thicknesses.
FIT KIT sizes all S1 Lifer Series shells!
(S1 Mini Lifer Helmets 19" - 20.5")
(S1 Lifer Helmets 21" - 23.5")
(S1 Mega Lifer Helmet 24" - 25.5")
SIZE / COLOR GUIDE
X-Small Grey
Small Red
Medium Gold
Large Black
X-Large Green
XX-Large Blue
XXX-Large Purple