This running jacket is made with a windproof shell that creates a micro-climate next to your body to keep you warm and comfortable on your runs. It is also waterproof according to the AATTCC-35 Water resistance test, so you can stay dry in wet conditions. The jacket features zippered pockets to securely store your essentials, reflective material to increase visibility in low light conditions, and the sleeves can be unzipped to convert the jacket into a vest. Overall, it's a versatile and practical choice for your running needs.