ASICS Thermopolis 1/4 Zip Designed with reflective bars all over for 360° visibility in low-light conditions, and thumboles for reinforced custom comfort, the Thermopolis® Long Sleeve 1/4 Zip is the perfect outlayer for chilly weather running workouts or as a lightweight jacket for a night out. And when it's a bit on the warm side, just zip down for added ventilation.