These waterproof and breathable trousers allow you to stay out even when it pours. The Kinemetic construction is based on an analysis of exactly how the body moves and uses the data to design trousers with optimum stretch and flexibility. A fabric that stops rain from getting in but allows perspiration out may sound impossible, but the principle is quite simple. Raindrops are made up of many molecules of water, while sweat is in the form of vapour, which is usually a single molecule. This evaporates from the surface of your skin, through a base layer then out through the holes in the fabric which are big enough to let the vapour out, but too small to let raindrops in. Of course the technology required to create such precisely engineered fabric is far from simple ... More info
