Don't know anything about actual performance, but I'd never heard of Primaloft. Pretty cool...
PrimaLoft is a patented synthetic microfiber thermal insulation material that was developed for the United States Army
in the 1980s. PrimaLoft is a registered trademark of PrimaLoft, Inc., the brand's parent company...
In 2010, PrimaLoft was awarded compliance with the bluesign criteria for environmental impact, establishing PrimaLoft as the first branded insulation manufacturer to obtain bluesign’s system partner status. The bluesign criteria is designed for maximum resource productivity with respect to environmental health and safety.
In 1983 the US Army Research Laboratory in Natick, MA approached PrimaLoft’s former parent company Albany International Corp., a global advanced textile and material processing company, to develop a water resistant synthetic alternative to goose down for use in military sleeping bags and clothing systems in variable environmental conditions.http://www.cabelas.com/materials-thinsu ... loft.shtml
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