Raintex DL will keep water out. Not only away from your shirt but completely outside the jacket. The breathable waterproof layer is laminated directly to the outer shell, leaving no space in between these layers to store water. Because only the outer shell will get wet, the jacket will dry fast and breathability remains intact. Conventional systems absorb water. It will hit through the non waterproof outer shell and only get blocked by the waterproof layer inside. Water will get trapped in between layers, behind plastic protectors, soak your liner…….. your jacket will end up soaked. Long drying times, weight increase and a musty smell the next morning are the results. Water in between layers will form a film blocking the membranes breathability. You will also feel water running down the membrane on the inside of a conventional system, it works like your bike’s liquid cooling.