Expanding (literally) on Zeal's award-winning Portal, Portal XL provides the biggest vistas ever. Packing all the same great features as the Portal, including Zeal's patented Rail Lock System (//RLs), Portal XL provides a larger fit with more coverage for face shots. Portal XL’s field of vision spans the widest of ranges and features 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.