The Knockaround Premiums model is a progressive update to the Classics frame style that put Knockaround on the map. Boasting a slightly wider and more accommodating fit, each pair features embedded "K" logos on the outside of each arm and provide crucial UV400 protection for your eyes. Whether you're a guy or a girl, it's hard to go wrong with this modern take on a timeless design. The polarized lenses considerably reduce glare from surfaces like water, the road, and car windows. Premiums sunglasses feature a sleek fit with a 51 mm frame height, 142 mm frame width, 54 mm lens width, 19 mm nose bridge, and 143 mm temples for all-day comfort.