Brooks Women's Essential Run Jacket 94% Polyester/6% Spandex Imported 3M Scotchlite Reflectors - to keep you safe and seen in dark winter nights. Wind Resistant - protects you from the elements with wind Water resistant - sheds rain, snow and dries quickly. Side pockets - ideal for when the weather gets colder and you need somewhere to store hats Soft Lined Collar - gives a cosy and snug feel.