I Bought the Wrong Petzl Harness for My Crew—Here’s What It Cost Us

That Morning in Spring 2023

I remember the exact moment it happened. It was a Tuesday, late April 2023. I was sitting at my desk with a fresh cup of coffee, feeling pretty good about myself. My team had just wrapped a big inspection project, and we needed to gear up for the next one—a multi-week climb on a series of industrial cooling towers.

I pulled up the Petzl catalog. The Adjama, the Corax, the Avao Bod. All the usual suspects. I had about six guys to outfit, and I thought, "Let’s get them all the same rig. Keep it simple."

That was mistake number one.

The Assumption That Cost Us

Here’s what I knew: Petzl makes great harnesses. The Adjama is the gold standard for industrial rope access. The Corax is a solid all-rounder. The Avao Bod is a classic for vertical work. But what I didn’t know was how much the fit and features mattered across different body types and work styles.

I bought six Petzl Corax harnesses. Size 1 for the smaller guys, Size 2 for the bigger ones. I even checked the size chart—twice. The waist measurement ranges looked fine on paper. But here’s the thing I missed (and most buyers miss this): the sizing chart is an average. It’s based on a standard body shape. If your team has a mix of physiques—long torsos, short legs, broader shoulders—you’re rolling the dice.

The Corax is a great harness (Petzl knows what they’re doing). But for some of my guys, it didn’t fit right. One guy’s waist was borderline between a Size 1 and a Size 2. The Size 1 was too tight after a meal. The Size 2 was loose enough to shift during a fall arrest. That’s not acceptable—actually, it’s dangerous.

I only believed in the importance of proper fit after I ignored a colleague’s advice. He’d warned me: "Check the sizing on each person before you order bulk." I didn’t listen. I figured, "We’re all within the range. It’ll be fine." It was not fine.

The Warning Signs

The first red flag came during the fitting session. One of my guys, let’s call him Dave, said the leg loops were pinching. Another guy—Mike—said the shoulder straps were too short for his long torso. I told them to adjust the straps. They did. Still uncomfortable.

I should have stopped right there. But I pushed forward. "It’s just break-in period," I said. "They’ll loosen up."

Spoiler: they didn’t.

The breaking point came on the third day of the project. Dave was hanging at height, doing a bolt inspection. He unclipped to reposition, and when he settled back into the harness, the leg loop slipped. It wasn’t a full fall—he was still connected to his lanyard—but it was a near-miss. A real one. My stomach dropped.

That’s when I realized: the harness was the wrong size for him. The waist size was technically within range, but the design of the Corax, with its fixed leg loop spacing, didn’t work for his body shape.

I pulled the entire crew off the tower. We did a re-fit. Three of the six harnesses were borderline. One was clearly wrong. We swapped them out with Avac Bods and Adjamas from a local supplier—at a premium.

The cost? About $450 in re-fit fees and a 3-day delay. Add in the embarrassment of explaining to the client why we were off-schedule.

That’s when I learned: one size does not fit all, even within the same brand.

The Real Problem: Over-Reliance on Brand

Here’s the uncomfortable truth. I bought Petzl because I trusted the brand. I trusted it so much that I stopped thinking about specifics. "It’s Petzl," I told myself. "It’ll work."

But trust in a brand isn’t enough. You have to match the product to the person. The Corax is a fantastic harness for light industrial work and multi-purpose use. But it’s not the best for long-duration suspension or diverse body types. The Adjama, with its adjustable leg loops and higher back D-ring, is better for rescue scenarios. The Avao Bod is the go-to for sit-stand comfort. Each has a job. I was trying to use one tool for every job.

I now have a rule: never order bulk harnesses without individual fitting. Each team member tries on the harness before I put in the order. I also keep a few spare sizes on hand for variations. Oh, and I check that the harness meets the specific standards for the work—like ANSI Z359.11 or CSA Z259.10—not just the brand name.

My experience is based on about 20 harness orders over three years, mostly for industrial rope access and rescue teams. If you’re working with arborists or recreational climbers, your experience might differ. I can’t speak to how this applies to sport climbing, but I’d guess the principle holds.

The question everyone asks is: "What’s the best brand?" The question they should ask is: "What harness fits my team’s specific bodies and tasks?"

Honest Advice, Not Gospel

I recommend Petzl for most industrial rope access work. The quality is consistent, the certifications are solid, and the customer support is decent. But if you’re dealing with a team of mixed body types—or a crew that spends 8+ hours suspended—you might want to look at more adjustable models like the Adjama or even consider sizing from multiple vendors. No single brand is perfect for everyone.

This works for about 80% of cases. Here’s how to know if you’re in the other 20%: if any team member feels discomfort during a five-minute fitting session, don’t ignore it. Don’t assume it’ll break in. It won’t.

Honestly, that near-miss was a wake-up call. It cost us about $900 in emergency re-supply plus a week of lost trust with the client. And it taught me a lesson I wish I’d learned the easy way: match the gear to the person, not the brand.

Take it from someone who spent $2,000 to learn that. (Well, $1,800—I’m mixing it up with the other project. Actually, closer to $2,100 with the rush shipping.)