Originally Posted by
a1penguin
"CPSC bicycle safety standard certified and ASTM 1492 skate certified"
If we all had spherical heads, it would be easy to purchase the proper helmet. But all heads are slightly different. I recommend you purchase a helmet that you can try on before buying. The only helmets that fit me are Bell size small. Other brands fit me different and are too large.
I, on the other hand, always have to buy the largest helmet I can find. Most helmets are too small for me. My head is pretty round and it doesn't look that large and I'm only 5'11". I know people larger than me that wear smaller helmets.