Gamakatsu Polarized Sunglasses GM1769 Smoke

Highly curved lenses provide a good fit. 
Sunlight is less likely to enter from the side.

Nose pads are made of non-slip rubber material. 

Smoke
All-purpose lens. By suppressing the harsh light on a sunny day,
it reduces damage to the eyes and reduces strain on the eyes even during long fishing trips.
Not only does it block out the strong sunlight of midsummer, but it also allows you to capture the slightest movements on the water surface at dawn and dusk in midwinter when the sun is at a low angle and the glare is strong.

Color: Smoke
Material: [Lens] Triacetate
[Frame] Plastic (polycarbonate)