It's wind and water-resistant and designed for visibility, with NB GLOW graphics that glow in the dark. Combined with silver reflective trims and a two-way zipper, you'll get noticed on those before-sunrise or after-dusk runs. Plus, the Beacon Vest has all the performance details you'd expect - from two welded zip hand pockets to an adjustable hem and back vent for added breathability. Pit to pit (laid flat) 20.5 inches