Fill Power is the number of cubic inches one ounce of down insulation occupies; also, a measurement of the down’s loft (fluffiness). The higher the fill power, the warmer it is. Choose the type of fill and use the fill power as a guideline to how warm or lofty you like your bedding. Lightweight warmth has a 500-550 fill power. 550-600 fill power offers medium warmth and 600+ fill power is very warm.
Answered on 3/13/2014 10:37:46 AM by Product Specialist Greg from Sierra Trading Post
Not fill powder, but fill power. A measure of insulation restoration after compression, 650 is a good indicator, then insulation is tight and warm
Answered on 3/13/2014 9:13:14 PM by Vit from Omsk, Siberia, RF
Search in YouTube.
Answered on 3/13/2014 11:00:53 PM by wolfys from Russia
It means that the dress fill 625 power white duck down
Answered on 3/17/2014 8:57:26 AM by lixinyin from chian