WHAT IS DOWN FILL POWER? COMPARING 500 VS 700 See More Videos Here: In this video we compare what different down qualities look like when outside of a sleeping bag or jacket. We answer the questions of why it is important to buy a higher fill power sleeping bag. Fill power is a way of rating the quality of down in a sleeping bag or other down product. The higher the fill power the higher the quality of the down. This typically refers to the percentage of down clus
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