The PX4s come in a sturdy carry case, which also holds two additional sets of lenses (so you get three in total – clear, orange and irridium), as well as full frame inserts that can be clipped in place.
The build quality is good and they’re robust enough to survive time in pockets and at the bottom of packs. The rubber grippers on each arm kept them in place reasonably well.
The off-the-face design means they don’t fog up too easily. The design isn’t the most ergonomic, though – the arms don’t hug your head well and along with the chunky build, that means they aren’t the best fitting glasses we've tried.
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