Mid-range grade. According to the inquiry of official website, JD.COM, Yaya brand products are favored by consumers and won the title of excellent products at national, provincial and ministerial levels for many times. Yaya is a well-known trademark recognized by China, and a national key protection brand, which belongs to the mid-range grade. Duck and Duck Down Jacket is Jiangxi Green Duck and Duck Co., Ltd., one of the top ten down jacket brands, a well-known trademark in China, and the largest professional manufacturer of modern down products in China.