So, I ordered a pound of down from Down Linens. I went for grey (cheaper than white and probably just aesthetics which I don't care about), 950 loft, with WR treatment. This was the highest spec they have. I did send them an email, asking what the WR treatment was…I figured it was probably just putting something like nikwax down treatment (etc) through it after doing their careful washing process.
However, the down has now arrived. Its in a big Orange woven bag (like what feed comes in here in Aus). Stamped hugely and clearly on the outside is
ALLIED FEATHER.
Now, I'm guessing that they didn't just put my random pound of down in a random Allied Feather bag that they had lying around after buying some down from the "competition" in order to do some comparisons etc. Down Linens sells too much down for them to be that random in their packaging processes, they have to be organised. SO I'm guessing that their WR down, at least at this high spec, is actually straight from Allied Feather, and is Hyperdry; Down Linens is just a retailer. For this particular product at least.
This is interesting as Allied Feather makes no mention of a 950 loft down on their website, 900 is their highest listing, and they mention that 900 is available in limited quantities due to its rarity. 950 and 1000 is of course even rarer.
So, I'm wondering, is this "950" just upmarketed 900 hyperdry? Is it genuinely 950? Did it start out as 900 and then get hyperdry treatment, which marketing hype says can increase the loft, thus Down Linens are remeasuring it when they recieve it and thus confirming its definitely 950? Are down linens going through and sorting high loft hyperdry down they buy (eg 850 and 900) to create 950 as well as lower grade WR downs? I'm guessing its possible they have grading machines to do so. Is Allied Feather overly conservative with their loft ratings?
When I get the chance I'll carefully decant some down (this packaging isn't going to make it easy…) and take it to uni to measure weight and volume in a lab to high significant figures. Then I can figure out the exact loft ratio of this down. I want to know, as it will affect my stuffing calcs; I'm only aiming for a few percent of overstuff max…I don't want it to come under.


