The R4D Tramline Racer is a signature JACK1T silhouette reimagined for crisp, cold days. Featuring Rds-certified 700 fill down and a slick water-repellent Lux shell, it delivers lightweight warmth in a short, structured fit. Profile stitch detailing and a two-way front zip create clean utility, while a fixed hood and soft-lined pockets provide comfort and coverage. Ideal for winter movement, everyday style and temperatures from 5 to 0°C