Hi Miguel, How are you doing? I think the last time I read your Blog you were not (health wise) a happy camper. Hope thinks are under better control for you.

Back in late Summer 2004 someone I know in the Outdoor stuff business had made a production run of a few items using Pertex Quantum and PG Delta. Some of both materials were left over and were what I would say "quietly" put on sale. Three colors of the Pertex Q with two of these colors as "seconds". I think the seconds material may have been used to get the products passed the pre-production testing phase but that might be wrong. Anyway I had exchanged a few emails with this person and had asked about Pertex Quantum and PG Delta for a few MYOG things I wanted to try. I got a reply about the coming clearance of the extra material and that I would get an email when they were ready to sell the stuff. In Oct 2004 I was able to order 10 yards of both Pertex Quantum (5 yards of 2 colors in seconds) and 10 yards of PG Delta. It seems to have been a one time only opportunity as I don't think any more of these materials have ever be sold like this since. At the time my sewing skills were not good enough to try on this material and the knowledge that I may never be able to get more caused me to pack it away for a later day.

Over time and up to now I have never heard of anymore being sold to someone like us MYOG folks.

My suggestion and what I have done is bought and tried some Momentum90 (0.9 oz (real weight is 1.1oz per sq yard) Downproof Ultralite Taffeta - Black (60 inch width) $11.95 a yard from Thru-Hiker.com. This material (to me) seems about the same as the Pertex Quantum I have and is just a little heavier. It is really nice and might be worth asking for a sample. Thru-Hiker also sells Epic Maibu which is also very nice but weighs 1.7oz per sq yard.

If you look at the
Thru-Hiker.com web site check out their Climashield HL as a possible replacement for the PG Delta.

Having said all of the above. I have a
$135 suggestion

or for $125/$129

Both of these sleeping bag are on sale and use PG Delta. You might be able to modify one of these bags to make what you need. The bags as they are sold are not to heavy and by the time you do a little cutting and re-sewing you might be surprised how light your underquilt ends up.

I have been thinking for awhile that I need to buy one of these bags that are on sale for the PG Delta. Moontrail is here in San Antonio and I may go by next week and see if I can tell how they are made. The Optima bag says it has 33oz of fill. That seems to be about 17 sq yards of PG Delta. I have never taken a sleeping bag apart.