Wonolo Photochromic Polarised Clip On Flip Sunglasses Polarized Fishing Eyewear by Amazon.co.uk

• Clips on any pair of glasses into sunglasses.

• Photochromic lenses: Adjust and change color due to the intensity of to the light surroundings. The clip will change darker when under the strong sun light for 20 mins.When exposed to intense sunlight, the glasses darken. In less light, the glasses will lighten. You can wear your eyewear all day and can change your lenses color according to light conditions

• Retro

• Polarizing layer lenses can effectively filter out excess light, weaken the strong light, make the dazzling light softer, play a good anti dazzling effect, make the field of vision more concentrated and keep the eyes always comfortable

• Protect your day and night vision.Polarized, anti-glare, light weight and scratch resistant.

• Great for fishing, driving, traveling and many other outdoor activities