Meet SEOUL by RUDSAK, a quilted down-fill shirt jacket that delivers lightweight warmth with a clean, modern edge. Designed with a structured collar that flips up to reveal an embroidered logo at the back, it adds a subtle statement to an everyday layer. Filled with high-loft RDS-certified duck down and feather fill, it keeps you warm without the bulk. Wear it over knits or tees—polished, effortless, and ready for cool spring days on repeat.