As long as stock last
The Procean heated undersuits are made of B200grs 3m thinsulate and consists of three layers

The breathable Thinsulate fabric ensures that it stays comfortably warm by retaining body heat without activating the heated system. This is because the undersuits have increased thermal properties when the system is off. Furthermore, the heated undersuits give you optimal freedom of movement.
You can heat the undersuit at three levels
Level 1 35% 4-5 hours
Level 2 65% 3-4 hours
Level 3 100% 2-3 hours
The on/off button is easy to operate from the outside!
The heated undersuits work on the supplied batteries with a maximum voltage of 7.4V
Heated
Heated undersuit standard specifications
Connection to other heated systems
Recommended temperatures for the Procean undersuits
This is an indication
Comfort and warmth is of course very personal