Gore Running Wear Women's Essential 2.0 Long Lady Shirt, Waterfall Blue/Splash, Medium 91% NYLON, 9% ELASTANE, MESH: 100% POLYESTER Imported Underneath the vest. Slighly insulating longshirt with high collar, ventilation-inserts and a short front zip. Ideal for running on cool and dry days. Comfort fit Short zip with semi-lock slider and underflap Mesh inserts for better ventilation Raglan cut Contrast flat-lock seams Close fit collar