Just letting everyone know, if you have a big head, like 60cm, this will not fit. I printed this out, its a great model and all that, but it just doesn't fit my big head. I know a lot of work has been done to get it here, but as constructive criticism, I say all the advancements should have been made to 6'6" Spartan scale one. So it can fit all heads. Smaller heads can always put in more padding.