Explore May 2008 Lithium

If a cold sleep gets you down, this is the pill for you: The Lithium squirts out of its stuff sack like water from a hose under pressure, expanding from its bursting-at-the-seams, one-foot by six-inch-wide sack to a downy opulence that could spark territorial disputes. Packed full of top-notch 850-fill goose down, the Lithium is rated to -12, about right for full-on three-season use. Further warmth comes from the down-filled collar around the neck and a similar one around the hood. With its full-length zip, the Lithium is a good three-to-four-season cure for the cold-sleep blues.