Other than serious death star architectural flaws

These black and silvery white shades are adequate for your early morning miles. They are good for avoiding direct eye contact with your problematic boss. And they are GREAT for protecting your eyes from the hellscape of radiation that follows the swift demolition of a neighbouring planet. Whatever. The Empire Did Nothing Wrong. 

Specs

• 1. NO SLIP: We use special grip coating to construct our frame to help eliminate slippage when sweating.
• 2. NO BOUNCE: Our frame is snug and light-weight, with a comfortable fit to prevent bouncing while running.
• 3. ALL POLARIZED: Glare-reducing, polarized lenses and UV400 protection that blocks 100% of those harmful UVA and UVB rays.
• 4. ALL ANGLES: Angular, fashion-forward frames that are always trending...even if you aren't.