Dirty Dog CrofterGold / Brown Polarised LensesPresenting Dirty Dog Crofter. Like retro Aviator sunglasses, Crofter boasts a classic double-bridge and tear drop lenses. But these Aviators are made from lightweight metal for all-round comfort.This frame is durable too. And electroplating and powder coating technologies together with epoxy coatings ensure they resist corrosion.Here polycarbonate lenses give clear views and phenomenal impact protection. Because these are polarised sunglasses, glare reflected by surfaces like water and tarmac is gone too. So you don't have to squint when it's bright outside.Two specifically-developed hard coatings add durability and scratch resistance to Dirty Dog lenses. UV400 lenses. Dirty Dog sunglasses come with a one year warranty.