Smith touts the lightness of their Pivlock V90 Max, and at 27 grams, they're among the lightest sunglasses we've ever worn. What is just as remarkable is the optical clarity of the one piece lens. Smith Optics is known for just that, their optics. So it comes as no surprise that they've figured out how to build sunglasses with such a sweeping, curvaceous lens, yet retain the clarity at the periphery you need for high speed sports.
The lens on the Pivlock V90 series is what Smith calls their Carbonic TLT. The TLT stands for Tapered Lens Technology, and this means that the thickness of the lens tapers from the optical center, towards the edges. This thinning allows for less refraction and therefore less distortion for the light waves passing through the lens. The Carbonic lens is also highly resistant to impacts. This is a great thing to know when you think about the myriad objects that could threaten your eyes on a bike ride -- gravel from car tires, tree limbs, birds (seriously, we know from experience). They exceed ANSI Z80.3 specifications, and they protect your eyes from 100% of the UVA, UVB, and UVC rays.
Smith has crafted their sports glasses reputation on replaceable lenses, building on their original Sliders, and these Pivlock V90 Max lenses are a natural evolution. It's one piece with specialized slots where the temple/hinge inserts and pivots into a locked position. The nose piece also snaps in with little effort. The Pivlock system is at once easy, quick, and secure.
The Grilamid TR90 frame provides you with maximum comfort, maximum flexibility, maximum toughness, and maximum resistance to sweat and sunscreen. And the hydrophilic Megol nose and temple pads keep them locked in place on your face. They won't slip. They won't slide. They won't fall off.
The Smith Pivlock V90 Max is available in Black w/platinum, Matte Smoke w/red mirror, and Smoke Crystal w/platinum. You'll get two extra lenses. The Ignitor lens is great for overcast days as it increases definition and depth perception in low light. The Clear Mirror lens is best for very low light conditions. The lenses are interchangeable with the smaller profile lens on the Pivlock V90 as well. The Pivlock V90 Max offers large coverage, yet Smith considers them a medium fit in terms of sizing.