Bellwether Velocity Convertible Jacket - Blue Mens SmallBellwether Velocity Convertible Jacket Blue Mens Small. The Bellwether Velocity Convertible jacket offers excellent wind and water protection in a single garment that converts from jacket to vest depending on changing conditions. Windproof highly water repellent construction DWR finish for added protection from water and dirt Full length locking 2 way front zipper with internal flap and garage Vented back panel increases breathability Adjustable shock