Very tough and durable sports styled transitional safety sunglasses with transforming 24 hour lenses for day or night use, the tint automatically lightens as the sun goes down. Photochromic sunglasses have UV activated lenses that transform from a yellow tint to smoke automatically so you don't have to change the lenses as the sunlight varies.

Frame: matte black; made from resilient high-grade nylon; soft rubber ear pads for enhanced comfort and grip; Global Vision logo on both temples; medium to large size (regular).

Lenses: 24 hour photochromic with a yellow to smoke transition; a yellow tint is great for hazy, overcast or foggy conditions and helps relieve eye strain and fatigue; shatterproof polycarbonate; scratch resistant; optically correct decentred lens technology eliminates distortion; UV400 blocking.

Please Note: photochromic lenses react to UV rays and do not darken when worn behind a helmet visor or motor vehicle windscreen that filters out UV light. They must be exposed to direct sunlight to darken.

Comes boxed with a Global Vision microfibre soft pouch.

These safety sunglasses are tested to the ANSI Z87.1-2010 (Z87+) standard for safety eyewear (high speed particle / low energy impact).

They comply with Standard ISO 12312-1:2013+A1:2015 and block 100% UVA/UVB rays meeting ANSI Z80.3 UV General Purpose Protection Standards. Transition from UV filter category 0 when yellow (night riding, low light, cloudy and overcast conditions) to UV filter category 3 when dark (bright sunlight, driving and general purpose wear).

Approximate Measurements: A = 138mm across temples; B = 42mm maximum lens height; C = 120mm to arm ends.