Independent buying guides for fly fishing

Fly Fishing Glossary: 15 Terms Explained

The words that show up in fly fishing specs, reviews and how-to guides, explained without jargon.

Backing
Thin line under the fly line that adds capacity for long runs.
Related: Best Fly Line Backing: The Insurance Under Your Fly Line
Catch and release
Returning fish quickly with wet hands, barbless hooks and a rubber net for better survival.
Related: The Best Fly Fishing Nets
Dry fly
A fly that floats to imitate adult insects on the surface.
Related: Best Dry Fly Selections
Euro nymphing
A tight-line technique with long rods and weighted flies, no strike indicator.
Related: Best Euro Nymphing Rods: Long, Light, and Sensitive by Design
Floating line
Line that stays on the surface, used for dry flies and most nymphing.
Related: Best Floating Fly Lines: The Upgrade Most Rods Are Waiting For
Fly line weight
Matched to rod weight so the rod loads properly when casting.
Related: Best Floating Fly Lines: The Upgrade Most Rods Are Waiting For
Leader
A tapered monofilament section between fly line and fly.
Related: Best Tapered Leaders: Smooth Turnover from Line to Fly
Nymph
A sub-surface fly imitating immature insects, where trout feed most of the time.
Related: Best Nymph Selections
Rod action
Where a rod bends. Fast rods flex near the tip for distance and wind, slower rods bend deeper for delicate casts.
Rod weight
A number from about 1 to 12 that matches rod, reel and line to the size of fish and flies. A 5-weight is the classic trout all-rounder.
Related: Best 5-Weight Fly Rods: The One Trout Rod That Does It All
Sinking line
Line that sinks at a rated speed to fish streamers deep.
Related: Best Sinking Fly Lines: Getting Flies Down Where Fish Hold
Streamer
A larger fly imitating baitfish, stripped through the water.
Related: Best Streamer Selections
Strike indicator
A small float on the leader that signals subtle takes on nymphs.
Related: The Best Strike Indicators
Tippet
The thinnest end section tied to the fly. Sizes like 5X get thinner as the number rises.
Related: Best Tippet: Spools Worth Trusting Your Fish To
Weight-forward line
A line with a heavier front section that makes casting easier, the most common taper.