I tested my new DIY underquilt this weekend. I made it using the video instructions posted on YouTube by Eric at CWHammocks, which were very helpful. I used 1.1 ripstop nylon for the shell and Primaloft Sport 5 oz. insulation. Since I had 1.5 feet of insulation left, I added it as an extra layer down the middle of the underquilt for a little extra warmth. Using shockcord in side channels makes for a super easy adjustable hang.
Result: as long as there is no wind, it's awesome. However, any wind blows right through the uncoated ripstop nylon. I know, because it was super windy where I was, and even in the trees I was feeling the gusts.
I'm thinking that the ripstop was a mistake. It probably vents moisture better – not a small consideration, because I sweat profusely at the first opportunity – but I doubt that this is that much of an issue for an underquilt, and feeling wind through the quilt is clearly undesirable. (BTW, altho Eric also used ripstop, I had decided to do so and bought the fabric BEFORE I found his videos – so this is in no way his fault!!!)
At this point I guess my choices are: A) take the UQ apart and remake it with different shell material on at least one side (won't happen); B) add a layer of DWR or something on the outside of the UQ, which would add some weight and bulk, but not too much; C) make a sock to go around hammock and UQ, which would block wind and add warmth.
I am definitely going to make the sock. The question is whether adding a windproof layer to the UQ would be a good idea. I do a lot of camping in the mountains, where wind is always a possibility, and at this point I am wondering if there are very many circumstances where there would be a reason to want the UQ to be without it (other than weight).
Any thoughts or suggestions would be welcomed!
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