Dress: Gigi Dress with Striped Details by Sandro
Kara Danvers (played by Melissa Benoist) on Supergirl on The CW was spotted wearing this green dress with striped mock neck on Supergirl on episode 'Crisis on Earth-X (1)' (3x08) in Nov 2017. Kara's Dress is the Gigi Dress with Striped Details by Sandro.