Pit Viper's classic sunglasses, the Originals, in a Double Wide fit size, for if you (like me) have a larger-than-average head size that your mother gives you no end of grief about.
Designed with 100% UV protection and a low Light Transmission, when you wear these sunglasses, you can spot obstacles, threats and potential foes with ease. Also, if you're a Dracula, not only will you look even sexier, you shan't be affected by the harsh rays of sunlight as you prowl the streets of Whitby for vampire brides.
The Originals Double Wide are 11mm (aka 1.1cm/whatever 0.43 inches is in Imperial) wider than their Single Width siblings, alongside being a touch taller and featuring a complimentary (but perhaps not complimentary) wider nose opening. If you don't know which size suits you, either buy them both and return one (or gift it to a narrower/wider-faced friend), OR you can visit the Pit Viper website where you can print out paper templates (I myself don't own a printer, so all my printing is done surreptitiously at the office).
The original beer swilling, sausage eating, beautifully retro, dirtbag sunglasses that will re-connect you with your inner party animal. They take a beating, and so do you.