SOL Emergency Bivvy

This is sort of a sleeping bag that's made of SOL's durable heat reflecting material. It's windproof and waterproof and has about 90% heat reflectivity.  The material in this bivvy is not breathable so condensation can occur while you're inside it. It's meant for emergency use and not really for everyday use unless you want to wake up with as much or more moisture on you than when you got inside this bag. The SOL Escape Bivvy is breathable, however (and more expensive) and I hope to have some of those in stock sometime in the future.