The Heatsheets Bivvy (1 person) from Adventure Medical Kits weighs only 3.8 oz, comes in an ultralight reusable sil nylon stuff sack, and could save your life if you're forced to spend an unexpected night out in the cold.
- Waterproof and Windproof
- Vacuum metalized polyethylene reflects up to 90% of your radiated body heat
- Stuff sack has room for additional survival gear
- More durable than mylar, quieter, and repairable