No matter in a shopping mall or on a on line shop like Amazon, even the sleeping bags may indicate the same fill power but have really great difference between their prices. Generally speaking, you may think that the goose down is no doubt better than duck down. Well, what kind of animal does the do

How to choose a RIGHT down sleeping bag? Secret 5—— Fill power There are two different kinds of down sleeping bag. You can either get a goose fill down sleeping bag, which is made of goose down or goose feathers, or, a duck down sleeping bag.Normally, duck down sleeping bags are typically a little

Down content is a very important measurement index of down products, it shows the presentation of down and feather in the down products．60/40, 80/20 and 90/10 are all common down content we know. You might think : It is quite easy to tell the difference between down and feather, they must be like th