The Auto Sun lens is both polarized and photochromic so it adapts to every light condition. I want to love these heels but there is just too much wrong with them. Its not meant for anything extremely heavy but is great for girls purses and belts. JBL is over 50% larger than the UE, which makes a huge difference. Storage for scarves, hats, shoes and a nice bench for removing shoes. Its just lightweight metal but it does its job. Flimsy However, there is a bit of work involved in using these. Battery life is amazing. Finally, I find the print too loud and garish.