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Devaux Nymph Fly JBN 31

Manufacturer: Devaux
Devaux Nymph Fly JBN31 – Benchmark artificial nymph for river fishing, precision and effectiveness guaranteed.
SKU: DVX-JBN31H14-GROUP
GTIN: 3700087132461
3.10 CHF incl tax
ReferenceModèleQuantitéTailleStock quantityAvailabilityPrice
DVX-JBN31H14
JBN 311H140
To order - lead times vary according to supplier
3.10 CHF
DVX-JBN31H16
JBN 311H160
To order - lead times vary according to supplier
3.10 CHF
DVX-JBN31H18
JBN 311H180
To order - lead times vary according to supplier
3.10 CHF
DVX-JBN31H20
JBN 311H200
To order - lead times vary according to supplier
3.10 CHF
Devaux Nymph Fly JBN31 represents the quintessence of modern fly fishing, designed to captivate passionate anglers seeking a high-performance product. Synonymous with excellence and French craftsmanship, this artificial fly is an essential choice for targeting salmonids in freshwater. Its meticulous design and precise tying make it a formidable ally on all waters, offering an exceptional success rate even in the most technical fishing situations.

Technical specifications :

  • Manufactured from premium materials ensuring strength and durability

  • Realistic construction for faithful imitation of aquatic invertebrates

  • Sharp hook providing optimal penetration

  • Balanced tying promoting natural immersion in the water column

  • Universally compatible with major nymphing techniques



Advantages and key strengths of the Devaux Nymph Fly JBN31 :
The JBN31 stands out for its striking realism that closely mimics trout and grayling prey, making fish nearly oblivious. Its versatility allows use in all seasons and various current conditions. Thanks to precise tying rooted in Devaux expertise, this fly guarantees efficient aerodynamics during casts and long-lasting integrity over time. Its wear resistance, combined with a superior-quality hook, secures hookups and significantly reduces drop-offs.

Usage tips and recommended rigs :
To fully exploit the potential of the Devaux JBN31, mount it on a thin fluorocarbon tippet to maximize presentation stealth. Ideal for tight-line nymphing, it excels in fine fishing under the rod, but also adapts to dropper rigs or Czech nymphing setups. Its versatility also allows use in stillwaters or fast-flowing rivers, where its density and balance promote a quick, natural descent to fish-holding zones.

Expert testimonial
“Since I started using the Devaux Nymph JBN31, my results in fast and sight fishing have markedly improved. Its ability to deceive educated fish, even in difficult conditions, makes it an indispensable asset in my fly box. Its realism and the hook’s robustness are guarantees of success, season after season.”

FAQ and additional information

  • Which species is the Devaux JBN31 aimed at? This fly is particularly effective on brown trout, rainbow trout and common grayling.

  • Can it be used in competition? Yes, its effectiveness and fine finish make it a preferred choice for many competitors.

  • How do I care for my Devaux fly? Rinse in fresh water after each use and store dry to preserve material quality.


Discover the Devaux Nymph Fly JBN31, the benchmark for demanding anglers who want to maximize their catches while enjoying a premium experience thanks to a unique product, designed and manufactured by a leader in fly fishing.