Devaux Tungsten Nymph Fly JBNT 38

Devaux Tungsten Nymph Flies JBNT38 revolutionize fly fishing with an innovative design and impeccable finish. Designed to meet the demands of passionate anglers, these nymph flies are engineered for both precision and effectiveness during trout fishing sessions in rivers or reservoirs. The use of tungsten ensures a fast sink rate and optimal positioning in the fish feeding zone, even in strong currents or deep water.

Technical features :

• High-precision hand-tied construction by Devaux


• Made from ultra-durable materials for maximum longevity


• Tungsten-weighted bead head for rapid sinking


• Faithful imitation of aquatic insects, delivering remarkable realism


• Suitable for all skill levels: from beginner to expert anglers


• Ideal for trout, grayling and other salmonids


• Reinforced, sharp and ergonomic hook


• Suitable for use in rivers and reservoirs

Advantages and product highlights :
The Devaux JBNT38 tungsten nymph is built around a unique design prioritizing effectiveness: the tungsten bead allows you to quickly reach the water layer where active trout feed, maximizing the chances of catching wary fish. The design and material choices provide the fly with great longevity despite repeated strikes, while the selected fibers accurately reproduce the natural movements of larvae and insects underwater. This realism is particularly appealing to educated fish or in high-pressure fishing areas. These nymphs are perfectly suited to all seasons, from spring to the cold waters of autumn, thanks to their ability to sink quickly through the water column and remain attractive.

Usage tips and recommended rigs :
To fully benefit from the efficiency of the JBNT38 nymphs, pair them with a thin leader (fluorocarbon 0.12–0.16 mm) to ensure a discreet and precise presentation. Using a semi-parabolic action fly rod improves strike detection through the line. For deep runs or strong currents, the JBNT38 reveals its full potential when rigged in tandem or as a dropper, allowing rapid prospecting of the bottom. It also performs very well during sight fishing where the responsiveness of the tungsten provides a decisive advantage.

Testimonial or expert opinion :
*"After testing the Devaux JBNT38 from its launch in 2025, I was struck by its effectiveness on difficult fish early in the season and in high-pressure rivers. Not only does it sink quickly, but the nymph's attractiveness remains intact even after multiple catches. This fly is now a must-have in my box for every session."* (Jean-Marc P., experienced angler, June 2025)

FAQ and additional information :

• Who is the Devaux JBNT38 for? It is suitable for both beginner and experienced anglers looking for a reliable nymph for trout in flowing or still waters.


• How to optimize its effectiveness? Favor a natural presentation with a controlled drift according to water conditions, and use a thin leader to maximize stealth.


• Is it suitable for all types of rivers? Yes, the JBNT38 can be used in small and large rivers as well as in stillwater.

In summary, the Devaux JBNT38 Tungsten Nymph Fly is the indispensable ally of the demanding angler, combining realism, innovation, robustness and effectiveness. It stands out as a reference in the world of fly fishing and will satisfy anglers seeking great catches, season after season.