maschera fox main coreThe Main Core mask, which uses our VLS (Variable Lens System) variable lens system, undoubtedly offers the best value for money on the market. The VLS (Variable Lens System) variable lens system makes your mask extremely versatile, allowing you to use both standard lenses (included) and injection molded lenses (sold separately) with the same frame. Wide field of vision, triple layer foam, and tear off system: a perfect mix of performance for off road