Do you ever have one of those pieces of active apparel that is designed for performance, yet you just don’t want to dirty it up because it’s just so nice as a fashion piece? That is my new dilemma with the Reactor Exert Jacket fro Under Armour. The Exert Jacket has all the makings of a technical piece of cool weather gear. Here’s a technical description of all it is offering: The ultimate active insulation piece built…