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Recently I asked a westcomb rep about Primaloft Sport rating of Westcomb Himalaya Hoody. He said the product development team told him that it is 133g/m2 (sorry for imperial users)… is it possible for such high rating in a 375g package??? I don't believe him so I asked him to confirm about that again, and he assured me that it's true. Am I supposed to believe him? Sounds too good to be true…
Ismail,
I don't believe him. A quick back of the envelope calculation is that a garment with the specs you provided in your post would take about 3 yds of insulation and 6 yds of fabric + misc notions. 133 g/m2 = 3.9 oz/yd2 and the lightest possible quantum is .7 oz/yd2. So 3*3.9+6*.7=15.9 oz plus the zipper, cordage, etc. =~17 oz or 482g.
I looked at the himalaya from last year when it had 170 grams of P1 and the xl weighed in at
32 oz. I bought the recon model which also has 170 grams and right at 32 oz. Not sure how the
current model could be 13 oz??
Dan
Finisterre in the UK make similar claims also.
I found the figures a bit dubious also.
I did come across another jacket lately where it turned out that fill weight they gave was for both the front and back layers of the jacket.
The fact they said the jacket had 350g of synthetic fill sounded the alarm bells.
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