According to SOLAS Chapter III & LSA Code
> Made of waterproof material
> Max Thermal conductivity of 7800w/m2k
> it shall reduce both the convective and evaporative heat loss from the wearer's body
> cover the whole body of person with lifejacket, except face
> unpacked and easily donned without assistance in a survival craft or rescue boat
> Can be removed not more than 2 min
> function properly throughout an air temperature range -30°C to +20°C