The temperature dropped sharply recently. Many areas are just as in winter in one second”. Have you silently taken out your thick winter clothes? Speaking of protection from the cold, down jacket is an indispensable winter coat. So the question is, was there a down jacket in ancient times? Why use duck or goose feathers for down jackets? …
Continue reading The thicker the down-filled coat, the warmer it is? Is duck down or goose down better? Knowing these so that you won’t be trapped