Panther Polarized Photochromic Sports Prescription Inner Ultra UV Effective Protection Against UV For Men and Outdoor [PANTHER] Sunglasses,

Photochromic lenses: The lens density is automatically adjusted according to the strength of the UV rays. When the UV rays are strong, the lens color becomes darker, and when the UV rays are weak, the lens color becomes lighter. There is no need to replace the lenses, so you can use them regardless of location or time of day; UV Protection: UV transmittance is less than 1.0%, and UV protection is more than 99%. Effectively blocks harmful rays such as sunlight and UV rays, protecting your eyes. Reduces eye strain while allowing you to see the scenery more clearly; Adjustable Size: The nose pads can be adjusted to fit your nose shape for a comfortable fit; Impact Resistant, Lightweight and Comfortable: Made from durable materials for active use. Lightweight and breathable frame is designed to be comfortable even when worn for long periods of time; Suitable for a variety of occasions: Perfect for sports such as golf, running, cycling, and everyday use; Panther sunglasses are perfect for sports and outdoor activities. Lightweight and durable design, photochromic lenses change color in response to UV rays, making them darker when UV rays are strong and lighter when they are weak. They can be used as sunglasses outdoors during the day and as glasses indoors where UV rays are hardly affected. The frame is flexible and provides a comfortable fit. The stylish design makes them useful in any situation. The included case makes them easy to carry.