Mariem El Amir's outfit is a perfect blend of comfort and style. She is wearing a black and white striped long-sleeved shirt that provides a classic and timeless look. Paired with it is a pair of high-waisted black leggings that offer a comfortable and flexible fit for her yoga session. To complete her look, she has chosen a pair of white sneakers that are both stylish and practical for her outdoor activity. The combination of these elements creates a chic and functional outfit that is perfect for a day at the beach or a yoga session.