High-grade lightweight down jacket series that changes down jacket's common sense. High-tech lock-locking technology, high-density sewing, excellent thermal effect. The high-yarn Trench Coat fabric eliminates the need to directly fill down feathers with a down-filling layer to achieve a surprisingly light, warm and soft fit. Lightweight foldable storage for easy carrying, not only suitable for travel and leisure or sports occasions, but also very suitable for everyday wear jacket.