Both down and Thinsulate are mentioned in the description; is this garment tailored more toward rich warmth or lightweight movement?
Between duck down's characteristic puffed-up warmth and Thinsulate's slim mobility, it can sometimes be difficult to gauge how the jacket's fit and wearing feel will turn out.
It is structured to secure cozy warmth in the body while reducing bulk in partial panels, lessening the clumsy wearing feel typical of thick padded jackets.
The puffer jacket from SAN SAN GEAR uses duck down with a ratio of 90% down and 10% feathers for the overall filling, and includes 3M THINSULATE in partial panels[1][2][3]. Generally, duck down creates high warmth as it puffs up by holding an air layer between down clusters, but it adds thick volume. In contrast, Thinsulate, a polyester-based microfiber thermal insulation, traps heat even with a slim thickness thanks to dense fibers and does not easily lose its loft from frequent friction.
Both the outer shell and lining are finished with 100% nylon fabric[4]. By using two different fillings in distinct areas, it can retain the warmth of a thick puffer jacket while reducing the awkward stiffness when moving your arms or carrying a bag. hmmm, it appears to be the result of balancing the warmth of a winter coat without missing out on free mobility in the city.
The specific locations of the partial panels containing Thinsulate and the detailed weights of each filling have not yet been confirmed.