Orvis' wildly popular Hydros® fly-fishing reel now makes its debut as a fully caged European nymphing machine. Given this style of fishing heavily leans on impossibly thin running line or monofilament for casting, they have modified the Hydros II into a Euro version with a full cage and tightened the tolerances to completely eliminate lines from slipping between spool and frame. They have also increased the reel’s weight slightly to better balance with the 10' and 11' rods so common in Euro circles.