My grandson loves the helmet. The fit was perfect out of the box. The only adjustment required was for the chin strap. While not inexpensive, the 10 year warranty takes him 3 years into his professional career, if he is so lucky. In reality, we're thrilled that with this helmet, and the Guardian cap that he will be wearing with it, he will be as protected as he can be from concussions. We feel that by purchasing this helmet that, while we can't eliminate the chance of concussion, we have minimized the chance of concussion.