I carried the original Steamboat ZS sling until it wore out. That pack set the baseline for what a sling needs to do: carry a full day of gear without getting in the way of the cast. Months into the new Swiftlink Steamboat Sling, it has become my standalone trout pack, the solution I grab for any trout pursuit from small creeks to giant stillwater reservoirs. The exception is big streamer work or fishing from a drift boat, where a boat bag still does the job. No sling I’ve tried fits a big trout streamer box.
The Steamboat is part of Umpqua’s new Swiftlink pack system, a modular approach to on-water carry focused on access and organization. The lineup includes four pack styles: the Ledges waist pack, the Overlook and Thundercreek chest packs, and the Steamboat sling. Each pack features integrated magnetic attachment points that let you stage tools like forceps and tippet in fixed positions, entirely replacing traditional retractors and clips.
The main pouch carries the bulk of the load. A medium dry box, a large nymph box, and a medium leech box slide into the stretch dividers without crowding each other. The smaller front pouch holds a small technical mayfly box, a small midge box, and the Drifthook Guide Nymph Kit. Stretchy dividers in that front pouch also hold a puck of bobbers, swivels, tippet rings, sighter tippet, weight, and a thermometer, with room left for a bead assortment or another box. A second stretch pouch up front handles the quick-grab items: floatant, shake, and leader-building material.
Umpqua lists the Swiftlink Steamboat at 11.5 liters and 16 ounces empty, with capacity for up to 12 fly boxes and 10 Link ports spread across the body. MSRP is $199.99. I use a Patagonia Stealth Switch (9 liters, 26 ounces) for warmwater fishing and guiding on foot. The Swiftlink Steamboat is a little bigger and a little lighter than my warmwater Patagonia pack, which is ideal because trout fishing requires hauling way more stuff. The included water bottle holder is a little on the shallow side, but adequate for all but the biggest water bottles. The bottom also has integrated lash straps to tie down a rain jacket or extra rod tube, which is not an option on the Patagonia sling if you are carrying a water bottle.
I don’t usually trust magnets on gear that takes a beating. After months of bushwhacking, rolling around in the truck, and bank scrambles, nothing has come off the pack or gotten lost. Flies set out to dry on the magnetic pad have stayed put through the same abuse. The one friction point is placement: the main line of ports sits a little awkwardly between the two pouch zippers, and bulkier accessories block access to those zippers when docked there. I moved my tippet holder down to the strap position.
I attached three accessories to the pack: the Link Tippet Tower ($39.99), the Link Geardock Double ($34.99), and the Link Hatchvault ($49.99). The Hatchvault mounts outside the pack on two base stations, with slit foam inside for storing flies and a magnetic pad on top for staging. I use it mainly for drying off drys that have already taken a fish so they don’t get crushed sitting on an exposed magnet. The one accessory I haven’t bought yet but plan to is the Link Drydock floatant holder, so I stop reaching around and unzipping the front pouch to get to the floatant.
The pack includes corded rings for non-magnetic attachments. I’ve got my trusted Abel nippers clipped to one of these, and there have been no issues, though the cord itself feels thin enough that I’m watching it over time.
Carry is comfortable on the right shoulder, and the shape spreads weight well across the back. There’s no option for left shoulder carry, unfortunately. That shape also keeps the pack from flopping forward when you lean over a fish or a wading staff, though the locking cross-body strap is still necessary. Spun around to the front for a fly change or a re-tie, the pack is easy to work from, with the pouches and tools landing right where you expect them. The net sleeve fit an Orvis Wide Mouth and a Rising net clean all season, with no forcing and no awkward draw.
Zippers and seams show no fraying, no drag, and no fading after months of regular use. I haven’t fully soaked the pack yet, so the limits of the water resistance remain untested.
I tried a hip pack before this and didn’t take to it. I’m a sling person. What I’ve gained back with the Swiftlink Steamboat is a dedicated trout pack, one rig loaded for trout and left loaded, instead of swapping boxes and gear every time the species changes.
