DIY Underquilt

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gregor-scott

Nomad
Apr 26, 2010
320
1
bournemouth
made this underquilt and took it for it's first night recently, lovely and warm!
made it out of ripstop pertex so it's waterproof and wanted to use a synthetic insulation for the reasons that it will last for years longer than down.
I bought some Primaloft One, supposedly one of the best synthetics on the market, used by berghaus, helly Hansen and north face. had to order from Germany though as I couldn't find a uk supplier.
synthetic is supposed to not pack down as small as down but this stuff is amazing! full length UQ with shock cord etc still attached compresses down to a ball about 8 inches in diameter!
also using synthetic means the construction is so much easier, I simply made an envelope out of the pertex by sewing three edges together, slid the insulation in (it comes in a roll with the insulation stuck to a sheet of scrim) I then sewed up the last end and ran a few lines of stitching along it's full length to stop the Primaloft moving around inside.
I then sewed grosgrain channels along both ends to allow shock cord to run through and gather the ends around your head and feet.
lastly I sewed loops along both sides to run the shock cord to keep the sides up and nicely around your shoulders, I clip the shock cord through the gathered end to the hammock lines and the side lines to the ridge line. works a treat, warm, light, packs small and should last years with no real maintenance.

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Shewie

Mod
Mod
Dec 15, 2005
24,259
24
48
Yorkshire
Great work fella, bring on the cold weather eh

Any estimate as to how low you can go in it ? I've got a few pieces of insulated clothing (Rab Generator smock and vest) and that stuff really gets you warmed up on a cold night, packs down well too.

I like it, I like it a lot
 

gregor-scott

Nomad
Apr 26, 2010
320
1
bournemouth
Great work fella, bring on the cold weather eh

Any estimate as to how low you can go in it ? I've got a few pieces of insulated clothing (Rab Generator smock and vest) and that stuff really gets you warmed up on a cold night, packs down well too.

I like it, I like it a lot

I reckon -10c maybe -15c but hard to tell, I used it with a sleeping bag as a top quilt, I think with being zipped into a bag and this under, then I think I would be comfortable easily well into the minus figures. my next project is a proper top quilt made from the same stuff, should be rated to -10c and will pack up even smaller than this UQ thus saving me taking the sleeping bag, about a kilo saving and a fair bit of bulk.
 

Teepee

Bushcrafter (boy, I've got a lot to say!)
Jan 15, 2010
4,115
5
Northamptonshire
Good job Gregor, I like the colour. I was wondering how long it would be before a brit made a synthetic UQ-no worries about keeping it dry.

Have to take point about synthetic lasting longer than down though-if it isnt mistreated, high quality goose down will easily outlive synthetic insulation.
 

mrcairney

Settler
Jun 4, 2011
839
1
West Pennine Moors
Nice one! I'm considering making a pair of custom blankets (which I guess would be a lot like a top quit) There's something about putting something together yourself that really feels right.

How much insulation have you got in there? Oh and thanks for the link Teepee!
 

gregor-scott

Nomad
Apr 26, 2010
320
1
bournemouth
Nice one! I'm considering making a pair of custom blankets (which I guess would be a lot like a top quit) There's something about putting something together yourself that really feels right.

How much insulation have you got in there? Oh and thanks for the link Teepee!

I bought the 200g stuff and got 2 metres of it, it. comes in a roll that's 1.5m wide, exactly the same as the pertex so no cutting needed.
 

unsponsored

Settler
Apr 6, 2009
839
0
North East England
I have made about half a dozen synthetic UQs. You need to make sure that you stablise the primaloft. This can be done with a quilting stitch every 6 inches or so. It also means that you dont have to sew the full length of the UQ. This is really important for full length UQs.
 

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