Whether your next trail run or bike ride is under a glaring afternoon sun or a partly-cloudy morning sky, Smith's Interlock Vxe Sunglasses' Carbonic TLT lenses will keep your vision clear and comfortable. Direct from Smith's development lab, these shades are made with ultra-durable ballistic-grade materials for unsurpassed strength and reliability.
Strengths: solid sunglasses. new type of lense interchange system works well. typical smith quality.
Weaknesses: the frame is a bit bulky around the lense, but i am just being picky. smith's tend to sit a little high on my nose...i wish they made them in different sizes like oakley does, but i'll put up with less fit for more $$$ in my pocket, oakley's are overrated.
i have the gray polarized lenses in addition to clear and rc30 and they are all high quality. i use them for biking, spring skiing, basically everything. they are not very good for mtbing in cold weather (eyes water) because the coverage is minimal. just ordered a pair of the reactor max's so hopefully those will be a better cyling glass. these fit a small[er] face so if you've got a medium/large head stay away.