A new immersion suit claims it can keep you alive up to 24 hours in freezing water. So we tested it.

When a ship sinks at sea and you’re thrown into the water, hypothermia sets in quickly, so every second counts. An immersion suit is designed to buy you time. Constructed like a surfer’s wetsuit, it keeps you warm for up to three to six hours, until help (hopefully) arrives.  Even a plunge into 50-degree water will induce hypothermia within 60 minutes. The Stearns I950 ThermaShield 24+ bills itself as the most advanced immersion suit made, one that can extend that crucial in-the-water survival window up to 24 hours, and keep you alive even in freezing (32°F) water. Read the article here 16:00

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