Top made of highly thermal fabric in three layers with internal breathable and thermal reflective membrane "ZERO WIND" thermally equivalent to 320 gr.

Possibility to use it in combination with our heating plates, through connection E/O cord with 12 V battery packets.
External cable for battery packet connection hidden when not used.  
Suitable in standard version for temperate climates and in heating version for extremely cold climates. 
Internal fabric with sponge making to maximize the transpiration. 
Sleeve Raglan cut to ease the freedom of movement of arms. 
Arm with thumb finger ring to hold it in place.