S1 Lifer Helmet (also: S1 Lifer w Brim Helmet & S1 Retro Lifer Helmet )

Fits 6.5" - 7.5" Hat Size

Hat Size 6 1/2" = S1 Lifer Helmet Size: X-Small  (Grey Sizing Liners)

Hat Size 6 5/8" = S1 Lifer Helmet Size: Small (Red Liners)

Hat Size 6 7/8" = S1 Lifer Helmet Size: Medium (Beige Liners)

Hat Size 7" = S1 Lifer Helmet Size: Large (Black Liners)

Hat Size: 7 1/8" = S1 Lifer Helmet Size: X-Large (Green Liners)

Hat Size: 7 1/4" = S1 Lifer Helmet Size: 2X-Large (Blue Liners)

Hat Size 7 1/2" = S1 Lifer Helmet Size: 3X-Large (Purple Liners) 

For Smaller or Bigger Hat Sizes you can wear S1 Mini Lifer Helmet or S1 Mega Lifer Helmet

S1 Mini Lifer Helmet (A smaller shell for smaller heads) Hat Size Range 5 7/8" - 6 5/8")

Hat Size 5 7/8" = S1 Mini Lifer Helmet Size: X-Small  (Grey Liners)  

Hat Size 6" = S1 Mini Lifer Helmet Size: Small (Red Liners)

Hat Size 6 1/4" = S1 Mini Lifer Helmet Size: Medium (Beige Liners) 

Hat Size 6 3/8" = S1 Mini Lifer Helmet Size: Large (Black Liners) 

Hat Size 6 1/2" = S1 Mini Lifer Helmet Size: X-Large (Green Liners) 

Hat Size 6 5/8" = S1 Mini Lifer Helmet Size: 2X-Large (Blue Liners)

S1 Mega Lifer Helmet (A bigger shell for bigger heads) Hat Size Range 7 1/8" - 8 1/8"

Hat Size 7 1/8" = S1 Mega Lifer Helmet Size: X-Small  (Grey Liners)  

Hat Size 7 1/4" = S1 Mega Lifer Helmet Size: Small  (Red Liners)  

Hat Size 7 1/4" = S1 Mega Lifer Helmet Size: Medium (Beige Liners)

Hat Size 7 1/2" = S1 Mega Lifer Helmet Size: Large (Black Liners)

Hat Size 7 1/8" = S1 Mega Lifer Helmet Size: X-Large (Green Liners)

Hat Size 7 1/4" = S1 Mega Lifer Helmet Size: 2x-Large (Blue Liners)

Hat Size 7 1/2" = S1 Mega Lifer Helmet Size: 3X-Large (Purple Liners)

What is a Fit All Kit? The Fit All Kit includes XS,Small, Medium, Large, X-Large, 2Xl, 3Xl Sizing Liners + 2 top pad liners

This Fit all Kit well help you size your helmet. And as your head grows you can switch out the sizing liners. Size flexibility.