I do have Pro Shell Goretex winter gear and it works pretty well but its not magic. It does move moisture from perspiration from inside the jacket to the outside of the shell. The thing many folks do not realize is the material also has a DWR coating on the outside that is essential to keep the water from soaking in. It causes water to bead on the surface and run off rather then soaking in. Unfortunately the DWR coating tends to wear out far quicker then the jacket. The Goretex membrane can get clogged with oils and grease. The net result is the gear needs to be kept clean with an appropriate cleaning product and occasionally re-coated.