Trango Double Rack Gear Sling - Big Wall Chest Harness with 7 Gear Loops Review (2026)

What it is and how it's worn

The Trango Double Rack is a chest gear sling, not a stand alone harness, so it is always used in conjunction with a separate seat harness underneath. That combination is the standard setup for big wall and aid climbing, where a single waist harness cannot comfortably carry the amount of hardware a long pitch requires. Trango describes it as built for big walls, aid climbing, long multi-pitch trad routes, and bolting or drilling work, all situations where you are racking far more gear than a typical single pitch trad or sport climb. Wearing the rack up on the chest also keeps weight off your hips during long hanging belays.

Gear loops and layout

The sling has seven total gear loops, arranged as three per side plus one in the back, giving you room to separate cams, nuts, pitons, and other hardware into logical groups instead of piling everything onto one or two loops. A high chest tie in loop adds stability so the sling stays put and does not shift around as you move and reach for gear. Daisy chains run down each shoulder strap, which give you extra places to clip items you want to grab quickly without digging through a loop, such as slings, extra biners, or a small pouch of hardware you use often.

Comfort and build

Trango pads the shoulders, waist, and back of the sling, which matters once you load it with a full aid rack, since an unpadded sling can dig in fast under that kind of weight. At 444 grams, it is a reasonably light addition to carry alongside your seat harness, and Trango prices it at 54.95 dollars, positioning it as an affordable way to add big wall capacity rather than buying a dedicated aid harness system. It is built as a full strength chest harness, meaning it is rated for climbing use rather than just being a simple gear caddy, which is worth knowing if you plan to clip into it directly.

Where it fits in your kit

Because the Double Rack only works paired with a seat harness, it makes the most sense for climbers who already own a harness they like and just need more racking space for occasional big wall or aid trips, rather than climbers looking for an all in one solution. On easier or shorter pitches, the extra bulk of a chest sling can feel like more equipment than you need, which is why it is best saved for routes where the rack genuinely will not fit on a standard harness. It pairs naturally with harnesses like the Ocun Webee Bigwall in this same lineup for climbers who want maximum gear capacity on a long wall push.

Who should buy it

This is a good pick for climbers who already have a seat harness and are planning aid or big wall routes that demand more gear loops than any single harness offers on its own. It also suits climbers doing bolting or drilling work who need to carry a heavy, varied kit for extended periods at a fixed station. Climbers who mostly free climb multi-pitch trad routes with a moderate rack will likely find the extra weight and bulk unnecessary, and should stick with the loops built into a standard harness instead of adding a chest sling.

Frequently asked questions