It's back! This is the style we've been asked to return to the line because it fills an important role: a lightweight layer that eases you into your run (or outing), but won't overheat you. With a simple mock neck, extra long sleeves (for pulling over hands) and a slightly cropped shape, you can throw it over a tank, or underneath a windbreaker. Or simply snuggle in its sumptuous softness. Light Lux is known to provide instant snuggle vibes.