French F1 Thermal Shirt - NewThe French Army F1 Thermal long sleeve shirt is the equivalent of the British Army thermal shirt, known as Norwegian Shirt or Norgie Top. Made from cotton, it is lightweight and able to absorb sweat keeping you cool in warmer conditions. Alternatively when used in cold environments, these are best used for warmth during low intensity activities. A 1 4 zip goes all the way to the top of the collar. The collar itself can be rolled up or down depending