Nike Shield Max Warm Run Jacket Men's Don't let the weather keep you inside with this men's Nike Shield Max Warm Run Jacket. The soft fabric keeps you warm without sacrificing ventilation, while a facemask and mittens provide optional coverage from the elements. Wind and water resistant exterior protects you. Built-in mittens at cuffs offer additional coverage. Zip pockets offers secure storage for essentials. 100% polyester. Imported.