HAT Size to Helmet Size Conversion Chart !

S1 Mini Lifer Helmet (Fits 5 7/8" Hat Size - 6 1/2" Hat Size)

Hat Size 5 7/8 = X-Small   

Hat Size 6" = Small 

Hat Size 6 1/4" = Medium  

Hat size 6 3/8" = Large 

Hat Size 6 1/2" = X-Large 

S1 Lifer Helmet (Fits 6 1/2" Hat Size - 7 1/2" Hat Size)

Hat Size 6 1/2" =  X-Small 

Hat Size 6 5/8" = Small 

Hat Size 6 7/8"  = Medium 

Hat size 7" = Large 

Hat Size 7 1/8" = X-Large  

Hat Size 7 1/4" = 2X-Large 

Hat Size 7 1/2" = 3X-Large 

S1 Mega Lifer Helmet (fits Hat Size 7 1/4" - 8 1/8" Hat Size) 

Hat Size 7 1/4" = Small

Hat Size 7 1/2" = Medium

Hat Size 7 5/8" = Large 

Hat Size 7 3/4" = X-Large

Hat Size 8" = XX-Large

Hat Size 8 1/8" XXX-Large

The S1 Lifer Helmet & S1 Retro Lifer Helmet fit most everybody from age 11 - Adult. (Fits 20.5" - 23.5")

And the S1 Mega Lifer Helmet fits humans with bigger skulls.  (Fits 23.5" - 25.5") 

* This art is for those that dwell on the California coast. For the families that skate and bike together. For the families whom beach culture runs generations deep. 

Moms, Dads, Grandmas, Grandpads, Aunties, Uncles and Kids that are embedded in the streets, hills and skateparks of the Golden State.

This art was inspired by those who have found the life and prioritize what's important...  

Have a safe and happy summer ! Helmets for the whole family !

Ask for S1 Helmets at your local skateshop or bike shop or buy em here... www.s1helmets.com