I purchased the Ignition Hyper-Haptic 1/4 Zip, and the Ignition Shield Waterproof Jacket at the same time. I am a summer person, and in winter I feel the cold, although I stil llove to run, so instead of the treadmill during winter, I thought I'd try a few more layers to keep running outside, and honestly, this combo is great! Both look great, feel great, and are warm! The Ignition Shield Waterproof Jacket runs a little large (or larger than what I want to run in), so I had to swap the Medium for a Small.