The best running sunglasses provide protection first and foremost, and should be comfortable without sliding down your face. Here are key considerations to look for in a new pair:

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Lenses: Tinted lenses help dim bright lights and make it easier to see objects in front of you. Also, consider whether you want a one-piece lens or two separate lenses. Running sunglasses made with one lens piece provide great coverage and little obstruction in your line of sight. You don't have permission to access "http://www.nikevision.com/sunglasses/skylon-ace" on this server. Two more of the best running sunglasses from Nike, the Nike Show X3 and Nike Show X3 Elite, are performance-driven shades that offer contoured lenses for great coverage, anti-fog ventilation holes and adjustable features. Plus, the optical clip-in makes it easy to add your prescription, if needed.

Nike Sunglasses

The best running sunglasses can be worn in a variety of climates and seasons—from hot summer weather to blustery winter days. After all, not only do sunglasses help protect the eyes from direct sunlight, but shades with polarised lenses can also help reduce glare from sunlight that reflects off surfaces like pavements, car windows or water, according to the AAO. You don't have permission to access "http://www.asos.com/nike/nike-skylon-ace-performance-sunglasses-in-grey/prd/204168625" on this server. Lightweight and aerodynamic, the Nike Windshield Elite provides a wraparound frame for maximum eye coverage with high-quality, tinted lenses that cut glare. The lens-frame design adds ventilation both above the nose bridge and on the top of the frame to help reduce fogging. You don't have permission to access "http://www.jdsports.co.uk/product/white-nike-skylon-ace-sunglasses/16201204/" on this server.

Nike Skylon Ace Sunglasses | JD Sports UK Black Nike Skylon Ace Sunglasses | JD Sports UK

The Nike Skylon Ace XV Sunglasses feature interchangeable Nike Max Optics lenses to fit changing light conditions and are designed to stay put when training, cycling or running. You don't have permission to access "http://www.nikevision.com/sunglasses/nike-skylon-ace-22" on this server.