Men's Under Armour Storm Session Run Vest. Keeps you protected from the rain and warm with strategic insulation, but is light and stretchy so it won't slow you down.- UA Storm technology repels water without sacrificing breathability.- Durable woven front body fabric paired with stretch-woven shoulders and upper back for mobility and comfort.- Strategic 60g synthetic insulation on the front body for lightweight warmth with no excess bulk.- Secure, zip hand pockets with interior media pocket.- Reflective details for greater visibility on low-light runs.- Dropped, shaped hem.- Uses a fluorine-free water repellent treatment. Material: 100% Polyester. Ref: 1378499001.