When you want the to step up to polarized optics, reach for the medium fit wrap-around frame of the Native Throttle Sunglasses. Protect your eyes from the sun's intense glare with the Native Eyewear's comfortable wrap-around frames and polarized lenses. When the clouds roll in, quickly swap out the Throttle's polarized lenses for the low-light or Sportflex lenses (sold separately). When the going gets bumpy, expect the Throttle Sunglasses to stay in place thanks to head-hugging Cushionoid rubber Mastoid temples and self-adjusting nose pads.Product FeaturesFrame: thermoplasticHinge: cam actionLens: polycarbonateInterchangeable Lens: yes, sold separatelyLenses Included: Polarized: yesFace Size: mediumFrame Measurements: Case Type: softNose Pads: yesTemple Pads: yesRecommended Use: Water sports, action sportsManufacturer Warranty: lifetime