Oakley photochromic sunglasses are good. They looks cool and can protect eyes well. As stated on the Oakley website: To reduce eye fatigue and improve performance and safety, photochromic technology automatically darkens and lightens the lens in response to the environment. From this point, wearing the photochromic sunglasses are much convenient than prepare regular glasses and sunglasses at the same time.
Okley photochromic sunglasses are very good, but they may be much expensive. You can get photochromic sunglasses with lower price from other online optical stores. Just search them online and you will get many optical stores which offer a large selection of photochromic sunglasses with affordable prices. You can compare them to find the most reliable one to get your photochromic sunglasses. I will recommend you some good optical stores to get transition sunglasses. You can try sunglasshut.com, amazon.com and forever21.com.