Scientific Anglers (SA) Trout Leader
Built for everything from tight Driftless spring creeks to larger tailwater systems, these tapered freshwater leaders are designed to deliver smooth turnover, accurate presentations, and natural drifts in a wide range of trout water.
Constructed from advanced nylon copolymer blends, these leaders reduce water absorption while maintaining excellent suppleness and knot strength. Whether you are presenting dry flies on a small Iowa stream or running nymphs and streamers through deeper tailwater currents, these leaders provide dependable performance and consistent control on the water.
Heavy butt sections help transfer energy efficiently for accurate casts, while the supple taper design supports drag-free drifts and delicate presentations when conditions demand precision.
Features:
• Designed specifically for trout fishing applications• Excellent for Driftless spring creeks and tailwaters
• Strong wet-knot performance with supple handling
• Powerful turnover with delicate presentations
• Available in 7.5 ft (0X–6X) and 9 ft (0X–7X) configurations
At First Watch Fly Co., we believe stewardship matters just as much as time on the water. Please pack out old leaders and tippet material, recycle packaging whenever possible, and help protect the fisheries we all enjoy.
LENGTH | SIZE | TIPPET DIAMETER | BUTT DIAMETER | BREAK STRENGTH |
7.5’ | 6X | 0.005” / 0.13 MM | 0.023” / 0.58 MM | 3.5 LB / 1.6KG |
7.5’ | 5X | 0.006” / 0.15 MM | 0.023” / 0.58 MM | 5.9 LB / 2.7KG |
7.5’ | 4X | 0.007” / 0.18 MM | 0.024” / 0.61 MM | 7.4 LB / 3.4KG |
7.5’ | 3X | 0.008” / 0.20 MM | 0.024” / 0.61 MM | 9.0 LB / 4.1 KG |
7.5’ | 2X | 0.009” / 0.23 MM | 0.025” / 0.64 MM | 11.2 LB / 5.1 KG |
7.5’ | 1X | 0.010” / 0.25 MM | 0.025” / 0.64 MM | 13.9 LB / 6,3KG |
7.5’ | 0X | 0.011” / 0.28 MM | 0.025” / 0.64 MM | 16.0 LB / 7.3 kg |
9’ | 7X | 0.004” / 0.10 MM | 0.023” / 0.58 MM | 2.4 LB / 1.1 KG |
9’ | 6X | 0.005” / 0.13 MM | 0.023” / 0.58 MM | 3.5 LB / 1.6 KG |
9’ | 5X | 0.006” / 0.15 MM | 0.023” / 0.58 MM | 5.9 LB / 2.7 KG |
9’ | 4X | 0.007” / 0.18 MM | 0.024” / 0.61 MM | 7.4 LB / 3.4 KG |
9’ | 3X | 0.008” / 0.20 MM | 0.024” / 0.61 MM | 9.0 LB / 4.1 KG |
9’ | 2X | 0.009” / 0.23 MM | 0.025” / 0.64 MM | 11.2 LB / 5.1 KG |
9’ | 1X | 0.010” / 0.25 MM | 0.025” / 0.64 MM | 13.9 LB / 6,3KG |
9’ | 0X | 0.011” / 0.28 MM | 0.025” / 0.64 MM | 16.0 LB / 7.3 kg |

