The best value mountain bike maskSpecifically designed for mountain bike enthusiasts, the Main MTB mask is engineered to be worn with both full-face and 3/4 helmets. It offers the best value for money on the market and is equipped with our Variable Lens System (VLS™). VLS™ makes the masks compatible with both standard (included) lenses and injection-molded lenses (sold separately), using the same frame. With its wide field of vision, triple-layer padding, and handy tear-offs, this mask offers great versatility without breaking the bank.