Serengeti AliceAlice's shape departs enough from the classic to make it intriguing.  It's really elegant too.  But behind that unique frame and temple – with its two-pin hinge, lies incredible technology. Alice features Serengeti Polar PHD lenses – they have better impact resistance than polycarbonate, they're 15% lighter than polycarbonate too (75% lighter than glass) and near glass in clarity. Lightening and darkening Photochromic technology works in harmony with the light tuning capabilities of Serengeti's Spectral control and polarisation beats all glare.  And they are UV400.  Comes with a one year manufacturer's warranty.