Winding descents. Technical climbs. Wide-open straightaways. It's all sharper with the Smith Momentum sunglasses. Performance takes on a new level of clarity thanks to the dual curvature of the toric lens. With a half-frame design, they provide maximum peripheral vision and the crisp visuals of contrast and color-boosting ChromaPop™ for a terrain-defining view. Whether you're blasting through the trees or rolling in the open, the two-position nose pad and adjustable, corewire temples keep them secure at any pace. Interchangeable lenses lets you pick the right tint for the day. FEATURES: Vision ChromaPop™ lenses enhance contrast and natural color to make the details pop Light-sensitive, photochromic lens option adapts to changing light conditions Interchangeable lenses Smudge and moisture-resistant coatings for easy cleaning and clear optics Fit / Integration Medium fit, large coverage 7x4 toric-shield lens curvature for sharp peripheral vision Wraparound fit Megol temples and nose pads provide non-slip grip so glasses stay put Two-position, adjustable Megol nose pads Easy-adjust, QuickFit temples for a customized fit Compatible with our optical docking system (ODS4) prescription lens insert Frame Evolve™ bio-based frame material is lightweight and durable AutoLock hinges hold frames open for easy one-hand on and off