On heart-thumping aerobic endeavors in colder climes, our new Thermal Speedwork Jacket traps your heat and lets you breathe. Its warm and stretchy 6.9-oz 85% polyester/15% spandex fabric has a smooth, durable face with a plush, wicking, brushed interior. The neck has a soft knit lining for next-to-skin comfort, and the bonded-on zippered pockets (two hand, one left sleeve) keep valuables secure. Thumb holes in the cuffs nudge the warmth meter when the mercury drops. With reflective logos on left chest and center back and Polygiene permanent odor control. Fabric is bluesign approved.