At 09:53 PM 11/11/2003 +0100, David Addleton wrote: >Check this out: ><http://www.i4u.com/article803.html> >rated to -50C ? ! >weightless or nearly weightless ? ! >when can I get a 3 oz aerogel sleeping bag? More info on aerogel http://www.jpl.nasa.gov/technology/features/aerogel.html