Uniqlo Ultra Light Down Jacket Product Details Brand Name: Uniqlo (UNIQLO) Product Number: 211-439702 (2021 Model) Series Name: Ultra Light Down Jacket Features: Lightweight, thin, and warm, with a pocketable design for easy portability. Materials: Lining/Shell: 92% Nylon, 8% Composite Fiber (Nylon) Filling: 90% Down, 10% Feather Country of Manufacture: China This product uses high-quality down, achieving high heat retention.