The Outdoor Research's Helium Emergency Bivy is small enough and light enough to not notice having it in your pack until you need it. The waterproof and breathable Pertex Shield+ fabric will protect you from the weather.
Outdoor Research says:
Under 10 oz of adventure insurance that packs down to the size of a beer can.
Even with an ideal forecast and immaculate itinerary, adventures can go wrong. Nobody wants to plan for the unexpected overnight bivouac, much less pack for it. Enter the Helium Emergency Bivy: The ultralight emergency shelter system that you'll barely even notice is there. Using the completely waterproof and seam-taped protection of Pertex® Shield+, this simple tube-like construction uses a cinch closure to seal out the elements and save on bulk. Weighing in at an undetectable 6 ounces and packing down to the size of a beer can, the Helium Emergency Bivy is the perfect piece to keep at the bottom of your pack for unpleasant surprises in the backcountry.
Outdoor Research's Helium Emergency Bivy is an extremely lightweight and packable insurance policy for when things don't go to plan and you need shelter from the elements. You can stick in you rucksack and not notice it until you need it such is the small pack size. The bag is big enough to fit 2 people if needs be.
The bag could provide extra warmth in a tent if needs be or to keep you sleeping mat and bag clean when staying in a bothy.
- Reviewed by BasecampGear