Swimsuit by ASOS Collection, Plain swim fabric, High halter-neckline, Open back, Tie fastening, Brief cut, Machine wash, 87% Polyester, 13% Elastane. Score a wardrobe win no matter the dress code with our ASOS Collection own-label collection. From polished prom to the after party, our London-based design team scour the globe to nail your new-season fashion goals with need-right-now dresses, outerwear, shoes and denim in the coolest shapes and fits.