Our View: The Rudy Project Ketyum prescription sunglasses are the ultimate in Rudy Project design, engineering and performance. The 2-lens packs ensures long-term value for money, whilst prescription capabilities are provided through a sleek optical adaptor.

Rudy's flagship sunglasses; the Ketyum represents the apex of passion, experience and technology. Combines the revolutionary Kynetium alloy with a mix of features never achieved before, such as

• 360 degree adaptable rubber-coated temple tips.
• Fully adjustable Ergonose II nosepiece technology
• Shock-absorbing spring hinges integrated within the structure itself.
• RP-D-Centred lenses maximise optical clarity.
• Interchangeable RP Optics lens technology