Marcel Ostertag keeps it 70s style for New York Fashion Week

German-based fashion designer Marcel Ostertag has returned to New York Fashion Week again with his aesthetic fit for the Berlin party girls and his penchant for sequins. Ostertag's fall/winter 2018 collection was called Opium, and was about the idea of being addicted to fashion, as the designer is a self confessed "addict of fashion" himself. As a result, fabric choice played a more important part in this collection than ever.