Lyon is a brand new jacket to the Galvin collection & is packed with features that will help you beat the elements, no matter how cold it gets. A water-resistant shell will make rain bead up & roll right off you in light showers so your waterproofs can stay in your bag unless it gets heavy. INTERFACE-1 combined with Gore-Tex Infinium makes this jacket totally windproof, so if it's blowing a gale, you can be assured that although it might affect your shots, it will not affect you. The stretch properties in the jacket allow you to swing the club with almost no restriction so you can go out & play your best golf. Breathability in this jacket is brilliant, allowing any extra heat & moisture to escape out of the membrane to make sure you are always comfortable.