"Yes, look at those geese, they just stay outside during winter and still survive perfectly fine. I was thinking, their feathers must be good for keeping warm. Inside this is goose feather, warmer than cotton, and you need less of it, so it's much lighter," Jinghan led Jingwan to grandma's side and let her feel it.
Mrs. Chen reached out and felt it, indeed there was only a thin layer of feather inside, "Just this thin, can it really do the job?" Mrs. Chen was somewhat skeptical.
"It works. I was outside just now and didn't feel cold at all," Jingwan nodded in agreement.