April 11, 2013
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"Like other high-end down sacks, the Cal is puffy, packable, and cozy. But it's also filled with water-repellent 800-fill DriDown, which Sierra Designs says stays drier 10 times longer and retains 170 percent more loft than untreated down."
"The highly compressible down enables this bag to shrink to soccer-ball size when packed."