Portal XL’s field of vision spans the widest of ranges and features our Optimum, Optimum Polarized, and Optimum Polarized Automatic Plus lens options. With a bonus, Persimmon Sky Blue Mirror lens included with every pair, and the Rail Lock System’s ground breaking lens change system, the mountains just got a lot larger.

The vertical Rail Lock System makes changing your lenses on the go a breeze, and it allows you to vent your lenses while hiking, or on the deepest, wettest days for fog-free skiing and snowboarding, that lets you keep charging while others are sidelined by fogged out lenses.