The Torrid APEX Jacket is an insulated jacket offered by Enlightened Equipment (EE), a Minnesota based backpacking gear company that specializes in custom items made to order.  I bought mine specifically for the CDT even though I already owned a different jacket seemingly suited to the task.  This felt like an out of character splurge for me, but it proved to be absolutely the right decision.  Two factors convinced me to take the plunge: the ridiculously low weight (7.25oz), and the warmth.  Custom color options were the cherry on top.  Here, take my money!