Lululemon Dash Into Dusk Jacket-Black-This technical run jacket has ventilation where you need it most, while the slim fit makes for easy layering. Designed for: Run - Lycra®: Added Lycra® fibre for shape retention Storage: Front zippered pockets with interior pocket for easy access to card and key.Back pocket to store the essentials Reflective details: Reflective details are revealed when Cuffins™ are pulled over hands. Shine-bright :Reflective detail helps keep you on the radar in low light