SMITH PIVLOCK ARENA MAX £120

Weight 28g Included 2 lenses hard case The Max in the name alludes to the size of these glasses, as their large single-piece lens offers excellent coverage. Numerous frame and lens options are available, ours coming with ‘sun-green mirror’ and an amber low-light version. There’s very little vertical adjustability from the movable nose-piece, but apart from their overall quality, these have an impressive trick up their sleeves: the PivLock lens-swapping system. Hold the glasses, rotate the arm and out it pops from its small oval nub. Quick, simple, no force is required and you don’t even smudge the lenses. It’s a very, very neat feature on what is a fine set of glasses at a pretty reasonable price.