Fill with 150g 3M Xinxueli professional-grade velvet cotton.It features a unique meltblown technology, and its warmth retention is 1.5 times that of ordinary down jackets. The fabric is equipped with inner lining to prevent lint and cotton leakage. The fabric is re-fermented and washed for a more textured feel.The fur collar is detachable and can be worn in multiple ways, making it suitable for warm winter commutes.