Bivouac sacks and emergency bags to keep in your backpack whenever you're in the mountains: they take up very little space, are lightweight and provide insulation from the cold and shelter in an emergency while you wait for rescue or spend a night outdoors.
Find one-person and two-person emergency bivouac sacks, a lightweight bivouac sack and some emergency blankets. Available brands are ARVA, Rab, Ortovox, SOL and Millet.
