Super light X-pac 1.7 oz/yd

What is the designation of said material?

I know they make some very light fabrics (it is a sailcloth) and they used to sell a 70d fabric at Rockywoods.

Looks like that’s the ET30.  I have no experience with it but it looks like the tear strength is 1.9 lbs/8.5 newtons on the warp and 3.5 lbs/15.6 newtons on the fill.  This is straight out of the product guide PDF that DP emails its wholesale customers.  If someone can find figures for 30d silnylon then you could compare.

Also, it does not have the complete waterproofness of the other Xpac laminates – 5 PSI instead of 200+ like the VX07/VX21/etc.  I don’t know how PSI converts to hydrostatic head though, if you wanted to compare to silnylon.

5 psi = >3500mm H2O

I think.

Thanks for the info guys!

FYI, I ordered small amount of a very light DP laminate, around 2-2.5 oz/sq/yd, to test a couple years ago, and found that it had no waterproofness at all – just a slight squeeze brought water right through – not worth testing for HH. So if you do follow up on a buy, suggest trying to get a sample to test for water resistance before ordering a whole lot of it.