Leaking Down… how long have I got?

Let's say the average down jacket has 300 grams of down in it.  A gram of down is made up of about 500 filo plumes or bits of down.  So that means in your jacket you have roughly 150,000 bits of down.  If you are worried that your jacket is leaking a few feathers here and there, please don’t.  Even if you were to lose 10 bits a day, it would take about 41 years before you had none left.  And thinking about it, as you lose down the pressure inside the baffle would reduce making it harder for individual bits to force their way out.  So let's say the pressure reduced by 50% in 10 years reducing the loss to 5 bits per day you’ve now got 62 years left.  I think I am rambling a little here.  Suffice to say unless you have a stream of down pouring out of your jacket or sleeping bag don’t worry about the odd feather or bit of down.

Created: Feb 01, 2012
Category: Products

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