Women’s water repellant raincut hiking jacket, Raincut 1 2 Zip Size:L XL dynamic herringbone shaped ventilation areas as Model Code:8797377 dynamic herringbone shaped ventilation areas as well as support bands at the instep we recommend choosing the smaller size to keep a light compression This is its capacity to let water vapour generated by the body during physical activity escape and therefore avoid water accumulating on the skin the perspiration vapour condenses inside the jacket You will feel damp inside this is not rain coming through but perspiration vapour condensing You therefore need to choose a rain jacket according to your type of physical activity