There are seven kinds of Spectrum shades available from Endura but the most versatile is this blue lens version.
They give a crisp increase in contrast for better depth perception in low light or hazy conditions, and yet they aren’t too bright when it’s sunny.
You could go the whole hog and buy a clear or yellow pair for grim days, the blue for all-round use, and the Smoke lens for sunny days and still only spend 50 quid.
The ﬁt seems a little wide but the arms can be bent into place. For the money these are fantastic value performers.