SURVIVA'S products are designed to satisfy the most demanding conditions. Designed to prevent and treat hypothermia and shock in emergency situations, combining innovation and technology to produce products tested to work in the real world, not just in laboratories.
SURVIVA JAK vs Standard Foil Blanket
Two groups of subjects were subjected to mild hypothermia, one used foil blankets to warm up and the other used Surviva Jak and undertook moderate activity on an exercise bike.
Wearing a Surviva Jak and performing low intensity exercise warmed the subjects up on average 4.13 times faster than a stationary subject with a foil blanket.
Results are shown below:
Using thermal imaging it is clear to see how the body is able to warm up faster when moving. These images were taken at minute intervals, with an average power output of 150 Watts (a moderately paced cycle).
The Windchill Factor
We all know how much colder it feels when the wind picks up. This is because of windchill: the apparent temperature felt on exposed skin due to wind. The degree of wind chill depends on air temperature and wind speed
Elsewhere, in places like Antarctica, the windchill factor plays a huge role in determining risk of frostbite.
In calm air a temperature of 0 Celsius feels like 0 Celsius. But if there is a wind of 10 knots blowing, it will feel the same as -5 Celsius.
However, the windchill factor doesn’t account for everything: things like humidity and damp kit will make you feel colder too.
Use our windchill calculator to work out how cold it will feel when you factor in the wind...
