Mammut Kira 3 Season – Sleeping Bags: Reviews
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Synthetic bags tend to have worse weight-to-warmth ratios than down. But the 25-degree Kira comes much closer than most, thanks in large part to the bag’s unusual internal-collar design, which snaps around the neck but still leaves plenty of space for claustrophobes. 25°F, 4.1 lbs; mammutusa.com