KAPVOE Polarized Sports TR90 UV400 UV Impact for and Trekking Sunglasses, Ultra-lightweight Frame, (99%+ Protection), Resistant, Anti-fog Lenses,

【Photochromic Technology】Photochromic lenses automatically change from clear to dark depending on the intensity of ultraviolet light, maintaining appropriate brightness and protecting your eyes even in strong sunlight. The visible light transmittance of these photochromic sunglasses changes from 85% to 15%. 【100% UV400 Protection】The UV400 protective coating blocks 100% of UVA & UVB ultraviolet rays and harmful blue light. This helps prevent age-related eye diseases and vision problems. 【Comfortable and Lightweight】Weighing only 29g, this ultra-lightweight design reduces pressure on the nose and temples. The soft, adjustable nose pads and flexible TR90 frame provide a more comfortable fit. Furthermore, it comes with an inner frame for myopia, making it convenient for fitting prescription lenses. 【Powerful Ventilation System】These sports sunglasses feature an excellent ventilation system with 10 vents on the lenses and temples. This not only prevents lens fogging but also improves breathability while wearing them. 【Multipurpose Use】These photochromic sports sunglasses are perfect for outdoor activities such as baseball, running, cycling, triathlon, mountain climbing, softball, and hiking. These photochromic sports sunglasses are perfect for outdoor activities such as baseball, running, cycling, triathlon, mountain climbing, softball, and hiking.