Premium replacement lenses for the Smith Optics Parallel. Restore UV protection, clarity, and style β at a fraction of new frame cost. Which lens for your activity? Polarized is the best all-rounder β popular picks: πΆοΈ Everyday β Polarized; Black/Brown/Grey π Driving β Polarized; Brown/Grey π£ Fishing / boating β Polarized; Mr. Shield for wet/salt π΄ Cycling β Polarized; Fire Red/Brown π₯Ύ Hiking β Polarized or Transition; Brown/Emerald π Running β impact-rated (Z87.1 NP or Mr. Shield) π See all 16 activities β golf, tennis, skiing, night riding, shooting & more β in the Lens Guide tab below. β οΈ Fits Smith Optics Parallel only β does NOT fit the Parallel D-Max, Parallel Max, Parallel Max 2, or Parallel 2. Before ordering, confirm the model name and lens width on your frame match the Fit Guide below.Compare lenses: Non-Polarized vs Polarized vs ISARC vs Mr. Shield Non-Polarized Polarized ISARCanti-reflective Mr. ShieldBEST VALUE Best for Screens, low-light & night Everyday glare Driving β kills back-glare Water sports & best clarity 100% UV protectionUVA/UVB/UVC β* β β β 100% Polarized β β β β Glare blocking β β β β Clarity Normal Enhanced Enhanced Best Contrast Normal Enhanced Enhanced Best Front-side anti-scratch coating β β β β Inner-side anti-reflection coating β β β β Polished edge β β β β Impact resistantframe must also comply Z87.1 Z80.3 Z80.3 Z87.1 Water resistant β β β β Dust resistant β β β β Sea-water resistant β β β β Pool-water resistant β β β β Detergent resistant β β β β Ballistic-proofframe must also be ballistic-proof β β β β Shatterproof β β β β Taper-corrected β β β β Injection molded β β β β Thickness 1.7mm 1.4mm 1.4mm 1.5mm Material Polycarbonate (PC) Tri-Acetate (TAC) Tri-Acetate (TAC) Polycarbonate (PC) *Non-polarized UV protection excludes Clear, Yellow & Pink lenses. Impact & ballistic ratings also require the frame to meet the standard. Light transmission: Clear 99% Β· Yellow 75% Β· Pink 36% Β· Transition 12β40% (light grey β dark grey) Β· all other tints 16%.