Strade Bianche Limited Edition The Strade Bianche has quickly become the quintessential early Spring classic bike race. It's defined by the leg-busting steep roads, terracotta-coloured Tuscan towns sitting atop craggy hills and the sinewy white gravel roads, from where the race gains its name, wending their way through the stunning area. Koo sunglasses are celebrating this early-season classic with the production of this limited-edition eyewear, with a design inspired by this stunning bike race and beautiful region. Performance ready Whether you're on the bike or off it, the Supernova Limited Edition Strade Bianche Sunglasses are a versatile pick for a day of activity. Weighing just 21 grams, you'll barely register they're there but they keep dust, dirt and debris from your eyes and keep out harmful UV rays. The key to the clarity of the Supernova is the impact-resistant and UV-protective ZEISS® nylon toric Photochromic lens. With a wide wrap-around aero shape you'll enjoy a panoramic view of the roads and trails ahead, always able to spot your next turn. As you pass through forests dappled with light and shadow, speed across exposed moors, pedal to windswept hilltops and plunge into deep valleys, the lens deals easily with the varying light conditions you'll encounter. It provides optimal clarity without altering surrounding colours. Hydrophobic technology prevents mud and water from sticking to the lenses too. When you're on the move, the 'Antigravity Tech' frame and arm design provide an incredibly secure fit. The temples are engineered with high levels of flexibility and breaking resistance while the nose pad is interchangeable. Photochromic MR Gold Lens The Photochromic MR Gold Lens adapts to ever-changing light levels, moving from Pink clear (cat.1) to Gold Mirror (cat.3). This offers perfect vision through sun-dappled forest trails to bright sunny hilltops. Lens Colour: Photochromic Gold - clear to mirror transition Filter Category: 1 - 3 Light Transmission: 11.5 - 73%