If you've lusted after a high-end, ultralight three-season sack but balked at the price, stop hemming and hawing and buy the Arroyo. It weighs just a zipper fob over a pound and a half, thanks to 800-fill down, and delivers conservative warmth with a comfortable, full-zip design. A nautilus-type hood clamps snugly on the head, sealing in heat with a strategically placed drawcord that doesn't hang in your face. On wet Northwest nights, the ripstop shell shook off moisture nicelyand dried quickly. 30°F, 1.7 lbs; www.marmot.comBonus: The internal watch pocket has a pull cord for easy access in the night.Bummer: It's still an ultralight bag, so don't expect to sprawl out.
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