Segment Height or Ocular Height is not required

All Single Vision have solid lens colors only (Std) Lens Material:  Trivex or Glass (newer models) Frame:  Metal frames Base Curve:  6 or 8 Rx Warranty  Standard Limited 2-year Warranty on Lenses

Note Non-Polarized Available under "Bormio Pilot" Photochromic:  Yes

Gift cards:

Randolph Aviator Single Vision Prescription Sunglasses<span> -American Tan</span> Fashion & Style Segment Height or Ocular HeightRANDOLPH ENGINEERING AVIATOR AUTHENTIC RANDOLPH SINGLE VISION LENSES Fit: 52mm (small), 55mm (med), 58mm (large) Gender: Both SPECIFICATIONS Polarized: Optional Lens Material: Trivex or Polycarbonate for Stronger Prescriptions Frame Color: Gunmetal, Matte Black, Matte Chrome, 23K Gold, 23K White Gold Lens Size: 55x45mm (med), 58x48mm (large), 52x42mm (small) Frame size: Temple 140mm, Bridge 20mm, Base Curve 6X Frame Material: Nickel Silver Alloy Frame