As you crest the mountain gap the rain begins to fall, so you pull out the Pearl Izumi P.R.O. Barrier Lite Jacket from a jersey pocket and continue downhill without the chills that can sideline your immune system. Even in summer, the quick hot-to-cold transition of a rain shower can bring on a wicked cold, but with this water- and wind-resistant ultralight jacket, you can fend off the sudden storm and stay healthy.

• This lightweight polyester shell packs down to fit in your jersey pocket or small hydration pack

• Full-length zipper vents excess heat in the humid, post-rain air

• Elastic hem and cuffs secure the jacket while the drop-tail hem ensures a dry backside

• Reflective details shine in the headlights of groggy morning drivers