Get ready for sunny days with the Damson Madder Oversized Navigator Tortoiseshell Sunglasses. These stylish shades feature gold details and are the perfect accessory for any 'fit. Get ready for sunny days with the Damson Madder Oversized Navigator Tortoiseshell Sunglasses. These stylish shades feature gold details and are the perfect accessory for any 'fit. Damson Madder was born out of a desire to make exciting designs, responsibly. From their North London studio, they craft playful, ultra-feminine designs meant to be worn again, and again (and again!). Think maximal style, minimal impact.