Kai

I am genuinely impressed by the physical product quality. The Kai frame design looks sleek and modern. The frames feel premium and durable in hand. I opted for the thinner lens material upgrade. It keeps the profile looking neat. There is no heavy "bottle-bottom" effect. The highlight is definitely the Transitions™ Gen S™ lenses. The reaction speed is incredibly fast. They darken the second you step outside. They clear up quickly inside. They did require a quick professional adjustment for my ears. Local opticians usually do this tweak for free. Now they sit perfectly. High-end lens technology does not need to cost a fortune.

another great pair of glasses as spares neat and classic design and for only £9 a pair it's a no brainer

Good value