Hadeer Mousa is wearing a vibrant yellow maxi dress that features a beautiful floral print. The dress is long and flowy, with a high neckline and long sleeves. The dress is complemented by a matching yellow headscarf that covers her hair and adds a touch of elegance to her overall look. She is also wearing a pair of black sandals that match her dress and headscarf. The combination of the yellow dress, headscarf, and black sandals creates a stunning and eye-catching outfit that is perfect for a day at the beach or a summer outing.