wondering how many percent down materials and feathers jacket we should get for a trip to Harbin in the first week of Jan next year?
I saw a lot of down jackets. .usually 90% down and 10% feathers.. and some 80% down and 20% feathers.. which is better?
I saw some very light, thin materials with 80% down and 10% feathers at Uniqlo in Singapore. .are those enough?
Noted that we need also some fleece and long johns inside..
any other tips please? thanks much!