Amazon.com: Emergency Sleeping Bags for Survival - Lightweight and Compact Bivy Sack for Sleeping Bag or Emergency Blankets for Survival - Emergency Bivy Bag for Winter Survival Kit or Survival Bag :
Tact Bivvy Emergency Survival Sleeping Bag | Survival Frog
Amazon.com : Go Time Gear Life Emergency Bivy Sack - Thermal Survival Tent and Sleeping Bag Bivvy for Blanket, Shelter & Camping Use - Pack of 1 with Whistle - Green : Sports & Outdoors