Complete with its mini length and a shirred back detail, the Damson Madder Penelope dress in silver glass satin is perfect for party season. Complete with its mini length and a shirred back detail, the Damson Madder Penelope dress in silver glass satin is perfect for party season. 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.