The north face denali Gore Tex Jacket – men’s next internal layer in the fabric make up is a film that attracts the water produced as perspiration and holds it in contact with the outer layer so that it can be vented or breathed to the outside world. This layer can also help increase the wind resistance of the garment If higher performance is needed a third inner layer can be added which rapidly moves moisture away from the body keeping it warm. The insulating effect of this layer helps the passage of moisture through to the outside by preventing condensation forming. The heat that is retained vaporises the moisture which is essential in assisting the venting process through the outer layer of the garment.