ASOS One-Shoulder Cape Mini Dress – Adult Sizing, Teen-Friendly Style. This steel blue one-shoulder cape mini dress from ASOS DESIGN is technically adult-sized (wearing US 6 here), but my 13-year-old daughter styled it effortlessly for a special occasion. Perfect for teens who love elevated looks or adults seeking a dramatic yet wearable silhouette. Currently 70% off — linked for easy shopping LTKParties LTKFindsUnder50 LTKSaleAlert