Umpqua Steamboat ZS Sling Pack

The Umpqua Steamboat ZS Sling Pack (often listed as ZS2 Steamboat 1200) is a high-capacity, single-shoulder sling pack designed for fly anglers who want maximum gear storage without cluttering the front for casting—especially ideal for spey, switch, or two-handed setups, but versatile for any wade or boat fishing.

Key specs include:

• Capacity: 1200 cubic inches (~20 liters) — ample room for a light rain jacket, lunch, large boat box, multiple fly boxes, and layers
• Main compartment: Spacious rear storage with easy access when slung forward
• Face/secondary pocket: Sleek front pocket for quick-access items like smaller boxes, tools, or accessories
• ZeroSweep™ (ZS2) design: Snag-free, no-dangle organization with nested tool ports, closed-foot YKK zippers, and reduced snag points
• Attachment points: 4 Molle modular stations for customizable add-ons (e.g., water bottle holder, floatant/tippet holders, net clip, D-ring/web loops for landing net)
• Tool stations: ZS retractor station with Hypalon band, ambidextrous hemostat grab tabs, foam fly patch station, stretch-mesh tippet pockets
• Comfort & carry: Ergonomic shaped shoulder strap, padded ventilated back panel, thumb-loop for easy "slinging" from back to front, adjustable straps for stability
• Durability: Tough nylon shell with ballistic Cordura in high-wear areas, fully padded construction for all-day comfort

Anglers love its clean, low-profile front (keeps casting lanes open), easy swing-to-chest access via the thumb-loop, thoughtful organization, and rugged build that handles heavy use on rivers or boats. It's praised for comfort when fully loaded and the ability to customize with Umpqua's Molle accessories—making it a favorite for serious fly fishers who prioritize function and freedom of movement.

A spacious, snag-free sling pack—built for big days on the water with zero front clutter.