Nothing is worse than being rudely awakened by rain when sleeping out sans tent, which is why testers had high praise for the 15-degree Shield. For starters, the 800-fill down is wrapped in a proprietary waterproof-breathable fabric that's nearly as tough as Mammut's burliest shells. And if it starts raining, the bag has a secret weapon: a hard plastic visor in the hood's brim that keeps water off your face even when you're lying down. Although the visor looks puny, it impressed testers with how much protection it afforded, but some felt a bit too buttoned-up. Third-length zippers on each side of the bag function as armholes, allowing you to read or cook without getting out of the bag. 15°, 2.5 lbs; mammut.com
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