Don't let grey, damp days keep you from your run. Step lively wearing this jacket made from a lightweight water resistant polyester outer featuring a reflective ZigTech mark on the right arm, and a liner made with Celliant™ fibers. SlimFit offers a more athletic, streamlined look. Vents at the elbows give you increased breathability and they stretch with you to maintain your range of motion. Other practical features you'll appreciate include two side zip pockets, plus a zippered media player stash pocket at the right chest.