What aspect of helmet fitting ensures that it does not shift during impact?

The snug fitting of chin straps is essential in preventing the helmet from shifting during impact. When the chin straps are adjusted correctly, they ensure that the helmet remains securely in place on the athlete's head. A well-fitted chin strap helps to keep the helmet from moving or rotating during play, which can be crucial for protecting the head and minimizing the risk of injury.

Proper tension on the chin straps helps to stabilize the helmet, allowing it to absorb impacts more effectively without displacing. If the chin straps are too loose, the helmet can slide around or come off, compromising the protection it offers.

In contrast, other aspects like ear hole alignment, chinstrap distance from the center of the helmet, and jaw pad pressure, while important for overall fit and comfort, do not directly address the primary function of keeping the helmet securely in position during dynamic activities or impacts.