Is Ultra Fabric Overrated? Why We Chose Ecopak for the Falcon 2L PRO

Picture this.

It’s a Tuesday morning. You’re in a quiet conference room. The meeting has just started, and you reach into your bag to grab a notebook.

Crunch. Crinkle. Crackle.

Heads turn.

For a split second, it sounds like you’re opening a family-size bag of chips under the table. But you’re not snacking. You’re just interacting with one of the most hyped “advanced” fabrics in modern carry.

That moment pretty much captures what I think of as the Ultra fabric paradox.

Over the last few years, the carry world has been in a material arms race. Lighter. Stronger. More waterproof. More extreme. Ultra fabrics became the spec-sheet king.

But as we move through 2026, it’s becoming clear that spec sheets don’t tell the full story.

At Arterra, we love innovation. But we design for real use first. And when it came time to build the Falcon 2L PRO, the question wasn’t “what tests best,” but “what actually feels right to live with every day?”

A Quick Admission: I’ve Always Been a Fan of X-Pac

I’ve been a long-time fan of the X-Pac VX series from Dimension-Polyant, and I still am.

X-Pac fundamentally changed the carry industry. Their laminates brought structure, weather resistance, and a clean technical aesthetic without going fully rigid. I’ve used VX personally, we’ve prototyped extensively with it, and it remains an excellent material.

So when Phil first introduced the idea of using Ecopak fabrics from Challenge Sailcloth for the Falcon 2L PRO, my initial reaction was hesitation.

I’m historically on team nylon over polyester. Nylon tends to age better, feel better, and behave more predictably over time. Polyester, in many carry applications, earned its reputation for feeling stiff or cheap.

Ecopak challenged that assumption.

The Spec Sheet Trap

Internally, we talk about something we call spec sheet dysmorphia.

It’s what happens when decisions are made purely on numbers, without accounting for what the product is actually like to use.

Ultra fabrics, also developed by Challenge Sailcloth under the UltraWeave line, win on paper. They’re extremely light, extremely strong, and highly water resistant. If you’re thru-hiking, backpacking, or designing for an edge case where every gram matters, Ultra can absolutely be the right tool.

But most people aren’t hiking the PCT.

They’re commuting. Traveling. Walking the dog. Sitting in meetings. Opening and closing their bag dozens of times a day.

When you optimize purely for weight, you almost always sacrifice livability.

The Auditory Tax: Why Noise Matters in Daily Carry

This is where material choice becomes real.

Laminated fabrics like Ultra have a distinct hand feel. That crisp, crinkly feedback can actually feel nice in the hand at first. It signals “technical,” and I understand why people like it.

Where it stops being charming is when that sensation turns into constant noise.

You notice it immediately in quiet spaces like offices or indoors. But you also notice it outdoors. When you’re walking through a quiet trail, moving slowly, or trying to be present in nature, every step and shift produces a crinkle. It pulls you out of the experience.

A bag shouldn’t announce itself every time you move.

Ecopak retains a premium, technical hand feel without the auditory tax. It feels intentional and refined in the hand, but stays quiet in motion. That makes it better suited for a much wider range of everyday carry scenarios.

There’s another practical reality people don’t talk about enough: rougher face fabrics attract hair, lint, and dust. If you live with pets, you notice it immediately. That’s one of the reasons we’ve consistently avoided harsher textiles, even when they test well on abrasion charts.

You touch your bag constantly. If it doesn’t feel good, nothing else matters.

Structure vs. The Paper-Bag Effect”

Ultra fabrics hold creases. They resist drapes. Once folded and flexed, they tend to stay wrinkled. Over time, that can give bags a permanently crumpled look.

Ecopak hits a middle ground. It provides structure without feeling boxy. It holds its shape without behaving like stiff sheet material. It moves with your body instead of sitting on top of it.

For a hip pack or crossbody worn close to the body, that difference is immediate.

Durability and Aging in the Real World

Ultra is extremely strong in abrasion testing. That’s not controversial.

What is still being debated in the carry community is long-term laminate behavior. We’re already seeing real-world reports of bubbling, creasing, and layer separation after years of repeated folding and compression. That doesn’t make Ultra a bad fabric, but it does mean it comes with tradeoffs.

Ecopak, in our testing and real-world use, has shown better long-term visual stability for bags that are opened, closed, compressed, and worn daily. When it ages, it looks used, not broken.  Another benefit and reason we chose Ecopak.  

Cost Is Part of Good Design

Material choice isn’t just about performance. It’s also about responsible cost allocation.

Ultra is expensive. Not just at the raw material level, but throughout manufacturing. It increases cutting waste, slows production, and drives up overall build cost. That cost inevitably gets passed on to the customer.

Ecopak isn’t inexpensive either. It’s a premium fabric. But it sits in a more balanced place where we can invest in better construction, better hardware, and better overall execution instead of pouring budget into a single extreme material choice.

For the Falcon 2L PRO, Ecopak allowed us to spend money where it actually improves daily use, not just the spec sheet.

Environmental Considerations, Honestly

No fabric is impact-free.

That said, compared to Ultra and traditional laminate constructions, Ecopak’s recycled content and manufacturing approach made it a better environmental choice for us. It wasn’t the sole deciding factor, but once performance, feel, and usability were already aligned, it mattered.

The Real Breakdown for Daily Carry

The Verdict: Design for Humans, Not Spreadsheets

This isn’t us writing off Ultra.

We still love it when it’s used in the right context. It’s an incredible material for specific applications, and I wouldn’t be surprised at all if we use Ultra in future products where its strengths actually make sense.

The Falcon 2L PRO just isn’t that product.

It’s designed to live with you. To open quietly. To feel good in your hands. To stay comfortable against your body. To age gracefully. To survive Tuesday morning, not just a worst-case scenario.

That’s why we chose Ecopak.

Not because it wins the spreadsheet, but because it wins real life.