Outdoor lighting conditions change throughout the day shouldn't your lens automatically adjust to give you superior clarity' The Tifosi Dolomite 2. 0 Polarized Photochromic Sunglasses do just that. The Fototec photochromic technology allows the lens to rapidly adjust to changing light conditions, and offers 100% protection from harmful UV rays. This lens is made from scratch resistant, shatterproof polycarbonate. It is also embedded with polarized material, greatly reducing glare and helping prevent eye fatigue, making this lens ideal for water and snow sports. The interchangeable feature allows for quick and easy lens removal and installation, and the Grilamid TR 90 high impact frame resists chemical and UV damage. The adjustable nose and ear pads provide a comfortable fit and prevent slippage. And need a place to store your sunglasses' Not to worry. A bag and case are included.