Layer dress system. It is important to know the layer dress system because it will help us to obtain a better output of our clothes in any situation and weather condition. This system will let us to adapt perfectly to the climate. 1st Layer: Inner Layer. Its basic function is to achieve an thermoregulating effect by getting away from our skin the humidity produced by the perspiration. 2nd layer: Insulation Layer Its main objective is to retain the warmth that our body generates by creating an air chamber that isolates us from the outside. It is important that it would allow perspiration by draining the humidity the other layer expels. 3rd Layer: Shell Layer That's the layer that isolates us from the outside, from the rain, the snow and the wind. Normally, it is the most external and the one that guarantees and optimises the other two layers. More information in: Grifone