The bulkiness of Women's Down Jacket (Couple Style) is an important indicator for measuring the warmth of down in the world. It refers to the value of cubic inches of volume occupied by each ounce (30 grams) of down under certain conditions. For example, an ounce of down that takes up 600 cubic inches of space is said to have a loft of 600. In general, plump, mature birds have a high loft, while smaller birds have a lower loft.

But what exactly does bulk do? There is a saying that the amount of cashmere filling represents the "quantity" of cashmere, and the amount of cashmere determines the "quality" of cashmere, and bulkiness is also an important measure. In the case of the same amount of fleece, the higher the number of hoods, the better the thermal insulation function. Since the higher the bulk, the more insulating air the down contains, and therefore the better the insulating properties.

Judging from the international best Women's Down Jacket (Couple Style) models (many are designed for outdoor sports), the women's Down Jacket (Couple Style) with a high number of awnings is generally not high in cashmere filling. Such specifications Generally used as the middle layer of the liner, it is convenient to compress and carry when exercising outdoors. In outdoor sports, it is usually used as an outer wear to keep warm, usually with a high amount of cashmere and a low number of tents, between 650-750.