Apparel & Accessories > Clothing > Dresses Clothing > Dresses in stock Ulla Johnson Sena Dress in Clay, Size 2: Sena’s flutter sleeves look so sculpted for the same reason that the tiered mini skirt is so swingy: Washed cotton poplin. It’s airy and crisp, holding the shape from the gathered seams beautifully. Cinch the waist tie as you like, add sandals, and go—to the dinner thing you said you’d be at, to the new boutique in town, to the gelato shop…the list goes on.100% cotton.