ASB Smacker

The ASB Smacker brings anti-static bag material from stillwater fishing to the rivers. This unique euro nymph features a subtle dual-luster body that adds flash without being overbearing, making it effective in both clear and off-color water. Designed by Cheech of Fly Fish Food, this pattern quickly became a go-to attractor nymph for euro nymphing.

ASB Smacker fly pattern - imitates Midges, Mayfly Nymphs tied for Trout
  • Intermediate
  • Year Round
  • Trout
  • Size 16

Watch it tied

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The ASB Smacker brings anti-static bag material from stillwater fishing to the rivers. This unique euro nymph features a subtle dual-luster body that adds flash without being overbearing, making it effective in both clear and off-color water. Designed by Cheech of Fly Fish Food, this pattern quickly became a go-to attractor nymph for euro nymphing.

More Euro Nymphs

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Materials

Hook
Umpqua XC400BL-BN, size #16 (or Fulling Mill 5045 Jig Force Barbless)
Thread
UTC 70 Denier, red (or fluorescent orange)
Bead
Fulling Mill Slotted Tungsten, metallic light pink, 2.8mm (or silver nickel)
Tail
Spanish Coq De Leon, pardo
Body
Anti-Static Bag Buzzer Material (dual luster)
Rib
Semperfli Tying Wire, 0.2mm, march brown (or copper)
Marker
Uni POSCA Paint Marker, black (for wingcase markings)
Finish
Solarez UV Cure Resin, thin hard

Overview

The ASB Smacker was developed by Cheech at Fly Fish Food to adapt the popular anti-static bag buzzer material for river fishing. The material creates a unique shimmering effect that mimics the natural iridescence of aquatic insects without the overwhelming flash of traditional tinsel bodies. This pattern works exceptionally well in various color combinations—experiment with different bead and thread hotspot colors to match local conditions.

Related patterns

Behavior & presentation

Natural Behavior
Small nymphs tumble along rocky substrate with gentle rolls and hops, maintaining near-bottom drift through microhabitats between stones. Continuous displacement in productive riffles provides constant low-energy feeding opportunities.
Where Trout Eat It
Fish position near bottom in runs, pocket water, and riffles at 2-5 foot depths where nymphs tumble through feeding zones.
How to Fish It
Maintain tight-line contact while drifting along bottom, detecting strikes through direct connection to the fly.
Best Water
Target pocket water behind structure, runs with moderate current, and riffle edges where nymphs concentrate near substrate.
Strike Type
Subtle sag in sighter or slight hesitation in drift pattern signals fish intercepting tumbling nymphs.

Fishing strategy

Rigging Suggestions
Fish as a point fly in a two-fly euro rig with a lighter dropper above. Use 5X-6X tippet and position 12-18 inches below your sighter.
Seasonal Timing
as an attractor pattern. Particularly productive during early season when fish are looking for something different, and in winter when subtle flash can trigger strikes from lethargic trout.
Pro Tips
The tungsten bead provides a quick sink rate to get into the feeding zone fast. The anti-static bag body creates subtle iridescence visible to fish without spooking them.
From River & Run

Where to fish it

Rivers anglers pair with this fly, with local shops that stock it.

Open River & Run

River details and fly shops from River & Run, our sister site.

Entomology

Small nymphs tumble along the streambed in gentle rolls and hops, maintaining near-bottom positioning while drifting through microhabitats between stones. Fish respond to these sub-surface presentations because the patterns mimic the natural tumbling behavior of displaced nymphs that occur continuously in productive riffles, providing constant low-energy feeding opportunities.

Order
Ephemeroptera
Common name
Mayfly
Organism
insect
Life stage
nymph

Pattern details

  • Moving Water
  • Rocky Mountain
  • tight-line-nymph
  • competition
  • dead-drift
  • baetis-hatch
  • midge-hatch
  • classic
  • guide-fly
  • attractor
  • searching-pattern
  • high-water