The TACT Bivvy space-age fabric reflects 90% of your body heat back to you. Once you’re inside the TACT Bivvy, you’re instantly wrapped in a cocoon of warmth. This means when you use the TACT Bivvy in situations where the temperature has plunged to dangerously low levels you’re still warm and protected.
It only weighs 6.2 ounces! You can take the TACT Bivvy with you absolutely anywhere and you'll never have to worry about its size or weight causing problems.