Updated for 2026, the Simms Tributary Sling Pack delivers durable, streamlined storage in an easy-wearing over-the-shoulder design.

Built from highly water-resistant 630D high-density Oxford nylon with TPU and PU coatings, this pack stands up to wet conditions and long days on the water.
A thoughtfully designed front drop-tray pocket provides fast access to flies, with internal and external Velcro fly patches and dual mesh drop-in pockets to keep essentials organized. The large-capacity main compartment swallows fly boxes, leaders, and layers, while a Hypalon tool docking station and shoulder-strap webbing loops keep frequently used tools right where you need them.
Comfortable, balanced, and efficient, the Tributary Sling Pack is a go-to option for anglers who want grab-and-go mobility without sacrificing organization or durability.
Features:

• Water-resistant 630D high-density Oxford nylon with TPU/PU coatings
• YKK zippered front drop-tray with internal & external Velcro fly patches
• Two internal mesh drop-in pockets for organization
• Large-capacity YKK zippered main compartment
• Hypalon tool docking station and shoulder-strap webbing loops
• Quick-release adjustable strap buckle
• Padded, mesh-lined shoulder strap for all-day comfort
• Stretch mesh underside pocket for water bottle or packable jacket