Nearly twenty five years ago in the mountains of Idaho, Jim Vincent began manufacturing some of the world's smoothest fly lines and strongest tippets and leaders. Since then, Rio's fly lines and terminal tackle products have earned an unchallenged reputation for performance and strength among serious fly fishermen and guides all over the world. Countless hours of research by Rio developers, both on the water and in the lab, has resulted in some of the most advanced fly line technology on the planet including their new MaxCast and AgentX coatings. These proprietary features help anglers make longer casts, stealthier mends, and faster hook sets in order for them to catch more fish. As numerous line and tackle companies continue to come and go, Rio products remain on the shelves of the top fly shops across the Rocky Mountain west and beyond. To learn more about Rio's cutting edge technologies and get help with fly line selection, download the Rio Line Selection App here.