Gore Running Wear Women's Essential Windstopper  Base Layer Turtleneck Top SHELL: 100% POLYESTER, WINDSTOPPERMEMBRANE, STRETCH: 92% POLYPROPYLENE, 8% ELASTANE Imported Windproof long-sleeve turtleneck shirt with front zipper is ideal for windy and cold days. Provides warmth and quick moisture management. Protects from cooling at neck, front, shoulder, arm and kidney-area. Tight fit Elastic WINDSTOPPER insert on front, at sleeves, over shoulders and on kidney area Thermo-stretch functional fabric Minimized seams for less chafing Flat-lock seams