Elixir Nanoweb Acoustic Guitar Strings 12 String Anderson pulls this off by

Anderson pulls this off by limiting options—these are all Maple over Alder

and only recently unearthed the new-in-box Meridian you see here

Technically

It was originally designed by a customer trying to re-create the Sungha Jung Signature guitar

the answer is easy:  The Baggs PADI

Elixir Nanoweb Acoustic Guitar Strings 12 String Anderson pulls this off byElixir Strings are brought to you by W. L. Gore and Associates, an innovator in PTFE polymer since 1958 (think Teflon). If you're a skier and a hiker like me, you've probably used Gore Tex clothing for years. Now, they turn this expertise to making polymer coatings for their Elixir guitar strings, and the results are striking. You don't have to spend long in any guitar related discussion before someone eventually begins praising the long lasting tone