In the same part of the clothes, slap your hands in the same direction on the inside and outside. If it is real down, it will be concentrated due to the beating, and other parts will be interlayered. When you shine it in the light, you will see that part is translucent. If the wadding is made of acrylic cotton, there will be no interlayering due to patting.

How to know the quality of down in down jackets. The down in down jackets must go through processes such as washing, disinfection, impurity removal, screening, and proportioning to achieve the best effects of lightness, comfort, hygiene, and warmth. The unprocessed raw feathers that have just been plucked from the duck are dirty, have poor warmth retention, and are harmful to human health. Therefore, when purchasing, you should: (1) Smell: Unprocessed wool has a strong fishy smell; (2) Pat: When the raw wool is patted with your hands, dust will fly into the air or traces of dust will be left on the fabric.