The North Face says:
Don't let the weather determine your pace or mileage for the day. Keep your core dry and warm when the weather's foul but when a jacket is still just too much. Made with TNF Apex ClimateBlock fabric, this virtually waterproof and windproof fabric maintains a comfortable level of breathability to prevent overheating. A layered venting system and body-mapped ventilation provide areas for hot air to escape, with an added cape vent at the back that opens during forward motion to allow hot air to escape, while remaining closed when you're standing still to provide warmth.
Historic Range: $28.73-$75.00
50D 80 g / sq m (2.4 oz / sq yd) 100% Polyester Plain Weave, DWR Finish