0 of 1 people found the following review helpful
Largely excellent shades with a weakness,
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This review is from: Bloc Shifter XR Multi Lens Sun Glasses 100% UV Protection (Sports)
Other reviews demonstrate the features and I have found the glasses very good and stylish for road biking. The interchangeable lense system works fine and they stay in place well. The problem I've found is that the little nubs that hold them on your nose are weak and both have broken off despite me being a careful older user.