Why is Parker down jacket more expensive than down jacket?

According to the query of wine network, Pai overcomes the use of real fur, which belongs to fur and has a higher cost, while the down jacket is filled with down, so the cost is lower. Compared with down jackets, in terms of keeping warm in winter, the pie is only a little better than down jackets, at least it won't be lost to down jackets. All these factors will cause Pai to be very expensive to overcome.