Brooks Ultra Lite Jacket III
Here's what other sites are saying:
This is a great lightweight layer for running, walking or traveling. Weighing only 4.3 oz., it packs down small so it won't take up much space in your pack or suitcase. With a cinch hood and windproof design, it is built to withstand tough conditions. 3M Scotchlite Reflective Material provides road safety during low-light hours. 100% polyester ripstop. Imported. Machine wash and dry.