Koo Open Cube sunglasses review

A smaller lens cycling sunglasses option for those who favour function over form

Koo Open Cube sunglasses
(Image: © Aaron Borrill)

Cyclingnews Verdict

Lightweight sunglasses with smaller lens and unique arm swivel design

Pros

  • +

    Lightweight

  • +

    Clear field of view

  • +

    Quality on par with rivals

  • +

    Superb fit and helmet compatibility

  • +

    Array of frame colour and lens options

Cons

  • -

    More expensive than established brands

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Koo might be a new entrant to the best cycling glasses category but, in a relatively short space of time, the brand has managed to work its way into the top rungs of WorldTour cycling. A subsidiary of Italian helmet maker, Kask, Koo supplies both the men's and women's Trek-Segafredo teams with sunglasses - namely the Koo Orion and, the Open Cubes you see here.

Aaron Borrill

Aaron was the Tech Editor Cyclingnews between July 2019 and June 2022. He was born and raised in South Africa, where he completed his BA honours at the University of Cape Town before embarking on a career in journalism. Throughout this career, Aaron has spent almost two decades writing about bikes, cars, and anything else with wheels. Prior to joining the Cyclingnews team, his experience spanned a stint as Gear & Digital editor of Bicycling magazine, as well as a time at TopCar as Associate Editor. 

Now based in the UK's Surrey Hills, Aaron's life revolves around bikes. He's a competitive racer, Stravaholic, and Zwift enthusiast. He’s twice ridden the Cape Epic, completed the Haute Route Alps, and represented South Africa in the 2022 Zwift eSports World Championships.

Height: 175cm

Weight: 61.5kg

Rides: Cannondale SuperSlice Disc Di2 TT, Cannondale Supersix Evo Dura-Ace Rim, Cannondale Supersix Evo Ultegra Di2 Disc, Trek Procaliber 9.9 MTB