These chrome specs are one of five colours available

BBB have unveiled their Impulse sport glasses, which come with interchangeable smoke polycarbonate lenses.

The lenses, with 100 per cent UV protection, protect your eyes against sunlight, dust and wind. The Grilamid frame features an adjustable silicon nose piece for comfort, while the soft touch temple ends provide a firm fit. The glasses come with a pouch and two extra lenses: yellow and clear.

Impulse, which retail at £69.99, are available in white, matte black, glossy black, chrome and red, all with smoke flash mirror lenses. The white frame is also available with Photochromic lenses (£99.99).