I prefer to wear them when the sun is low , dawn , dusk , and usually in winter the sun is low all day , well , for a few hours is all the sun shines in winter ,fookin torture when low sun glares on freshly wet tarmac although have not seen much for a couple of months , rain and snow and cloudy most of the time .
in my motorcycle days I carried clear and tinted visors rather than clear with sunglasses cos sunglasses aint comfortable with a lid on .blue eyed boy .