European style nymphs can be traced back to the vises of Spanish, French, Czech, and Polish fly tyers.  These simple but highly effective patterns have really taken off in the U.S. and for very good reason:  They catch fish…a lot of them actually.  Almost all of these flies have a tungsten bead and a thin profile to help get them down to fish in a hurry, and can be fished on a Euro leader, under a dry fly, or on a standard two fly indicator rig.