USD 
Canadian
Shape: Full shield coverage. Best fits small to medium faces with round, oval or square shapes
Bridge: Saddle-style bridge with adjustable nosepads
Fit: (eye) 132, (bridge) 16, (temple) 129, 6.75-base curve
Finishing Treatment: Matte finish
Material: Rimless shield with thin injected nylon temples
Hinge: Traditional pin hinge
Maui HT ™:
Full sun to overcastHigh Transmission lenses work hard when distance counts. With the highest usable light transmission, HT technology balances contrast and depth of field for crisper details during varying conditions.