Rapid Eyewear TRANSITION SPORTS SUNGLASSES for Men & Women with Photochromic Lenses that Darken with the Light (Clear – Cat 3). For Driving, Cycling, Running and Other Sports. UV400 Protection : Amazon.co.uk:
Madison Crypto Glasses - matt black / photochromic lens (cat 1 - 3) | £69.99 | Helmets & Eyewear | Eyewear - Sunglasses | Road, Mountain and Electric bikes
Planet X Bikes - 5 - Carnac TCFS Cat 0-3 Photochromic Sunglasses – 55/60/65 £79.99 Use code SIZZLING30 to save yourself an extra 30% Everything we said about the other TCFS models,
Fartlek EASSUN Spare Parts, CAT 0-3 Photochromic, Anti-Fog and Water Repellent