Surviving winter weather in the outdoors requires proper clothing, sleep systems, hydration, and care for electronics, according to survival expert Jessie Krebs. Krebs emphasizes the importance of dead air space created by loose-fitting, insulated clothing to retain warmth. She also advises on techniques for staying dry, repairing clothing, and optimizing sleep systems for cold conditions. Additionally, Krebs provides insights on maintaining hydration and preventing battery damage in freezing temperatures.
  

Key Points: 

1. Dead air space created by loose-fitting, insulated clothing is essential for retaining warmth in cold conditions.
2. Staying dry and managing sweat is crucial to prevent energy loss and hypothermia.
3. Sleep systems should be carefully configured to minimize dead air space and maximize warmth.
4. Hydration is key, and water bottles should be filled with some air space to prevent breaking when freezing.
5. Extreme cold can damage batteries, so they should be kept warm or removed from devices when not in use.

Source: https://www.outsideonline.com/outdoor-adventure/hiking-and-backpacking/how-to-survive-in-the-cold-according-to-an-expert/