Pursue your thrill in the backcountry. From skin track to boot pack to full-speed descents,the Smith Pursuit sunglasses can do it all. They blend goggle-like coverage with the airflow and easy-to-wear feel of sunglasses that perform while you're climbing and descending.VisionThe ChromaPop™ Glacier Photochromic lens adapts to match the light conditions with less sensitivity to temperature changes plus ChromaPop™ to provide contrast and color enhancement throughout the tint range.FrameEvolve™ bio-based frame material is lightweight and durableAutoLock hinges hold frames open for easy one-hand on and offSpecial screwless hinge for added safety and durabilityFitLarge fit, XL coverage5-base cylindrical shield lens curvatureSlight wraparound fitMegol temples and nose pads provide non-slip grip so glasses stay putTwo-position, adjustable Megol nose padsEasy-adjust, QuickFit temples for a customized fitRemovable, magnetic TPU side shields for added light protectionIncludedCustom low-profile performance caseMicrofiber bagSnow goggle-inspired retainer strapRemovable, magnetic TPU side shieldsAccessory TPU nose guard for added protectionBonus clear lens