The long black reference has fine straps beside a folded, lower-running upper edge. Quieter dark areas sit between the upper and more horizontal waist folds. A high front opening reveals one leg and a pale open-toe shoe with fine straps and a band at the ankle. Fabric continues further towards the side and rear over the floor. The arms stay lower beside the body; head and face are outside the upper crop. This establishes neither a particular fibre nor a club visit.
Use the visible shoe to consider its relationship to the front opening. The photograph shows a specific combination, not a route checked for you. Try your own shoe choice against the complete lower length and add the same model’s matching rear. A front leg opening does not fully explain the trailing back area.
If you want less floor fabric, ask about an actually offered version. Have any intended alteration explained with the exact shoes planned. The quieter dark surface gives no certain material, stretch or treatment information; use product details and the finished label.