Polarised sunglasses reduce glare from the light reflected off surfaces. This includes natural elements like water and snow and surfaces like glass and car hoods. Glare can be a nuisance when you're doing an activity, temporarily obstructing your vision and causing you to strain or squint your eyes. In some cases, like when you're driving, sudden glare can be dangerous. Polarised sunglasses come in a range of colours, however, darker colours are able to offer a higher level of polarisation. They are perfect for those with active lifestyles who do high-octane sports such as water sports, cycling, skiing, snowboarding. Polarised lenses work by reducing horizontal light waves and contains a filter which blocks this type of reflected light, giving better contrast, visibility and 100% UV protection.