"microcapsules capture, store, + release heat. they're spun into yarns for outlast fabrics.
to explain how its technology works, Outlast points to ice, which is also considered a phase-change material, transforming from solid to liquid as it absorbs heat + cools a drink.

Coors alcohol dynasty bought outlast fabric license, + Michael Coors, CEO of Outlast, wants to increase sales in the China + India markets. He's eyeing expansion into other product lines, including building materials and thermal energy storage. among outlast's 1st products was a so-called magic blanket. 
"It would initially feel cool and fresh when (people) got under it, and within several seconds, it started going into its neutral state where there just wasn't any sense of heat or cold when you were in the bed"
denverpost