X-KD's are 20 percent larger than The Original KD's Lightweight, 100% UV protection Long slim arms for better peripheral vision Fits comfortably under a helmet Acetate frame with wire reinforced temples, Ultra-tough Polycarbonate lenses
To calculate the overall star rating and percentage breakdown by star, we don’t use a simple average. Instead, our system considers things like how recent a review is and if the reviewer bought the item on Amazon. It also analyzes reviews to verify trustworthiness.