Tonic Shimmer sunglasses have sturdy and light-weight frames, will cut through glare and increase clarity to ensure that you never miss a moment in the great outdoors.
The grey glass has three colours integrated into the lens: grey, green and aqua. Where most grey lenses tend to flatten colour out, the Tonic grey lens defines colour. That is a big difference between Tonic and any other grey lens on the market. Just like all the Tonic lenses, the clarity is unbeatable.