How Simms Waders Are Made: Inside the Bozeman Wader Factory
From technical fabrics and precision seam taping to individual leak tests, see how we build select Simms fishing waders in Bozeman, Montana.
Before you see a finished pair of Simms waders, you hear the process: sewing machines reverberating, heat presses hissing, tape machines running, compressed air releasing, and stacks of technical fabric rustling across the production floor. It is the soundtrack of wader manufacturing in Bozeman, Montana.
We build select fishing waders in our Bozeman facility, where our skilled Wader Makers cut, stitch, tape, assemble, and individually test each pair. Our process brings materials, product development, testing, repair feedback, and manufacturing expertise together under one roof.
How do we make Simms waders?
Our Bozeman-built waders move through a tightly controlled process that includes material testing, patterning, cutting, sewing, seam taping, assembly, and final leak testing. Some of our waders require more than 150 steps before they are ready to leave the facility.
At a glance, the process includes:
- Selecting and testing technical fabrics and components
- Developing and validating the pattern, fit, and construction method
- Cutting individual fabric panels
- Sewing, taping and assembling the wader
- Inspecting and individually testing the finished product for leaks
That process is exacting by design. Each operation affects the next, and small tolerances can make a meaningful difference in waterproof performance, fit, mobility, and durability.
Where are Simms waders made?
We build select Simms waders at our manufacturing facility in Bozeman, Montana. The current G3 PRO collection is one example: every pair built here passes through the hands of our Wader Maker team for cutting, stitching, taping, assembly, and individual testing.
Here, we’re focusing specifically on the waders we build in Bozeman. Product origin varies across our broader assortment, so check the individual product page or label for the most current information about a particular model.

What materials are used to make Simms waders?
Every wader we build begins with its materials. Fabrics and components must meet our demanding specifications for waterproof performance, breathability, durability, comfort, mobility, and fit before we move them into production.
For our GORE-TEX waders, the fabric system is only the beginning. Seam tape, stockingfeet, zippers, pockets, suspenders, buckles, and other components must work together as a complete system. We evaluate materials through lab and field testing, and we test construction methods before a design reaches our production floor.
Premium materials do not guarantee a premium finished product on their own. Their performance depends on how precisely we cut, join, tape, and assemble them—and on the people doing that work.

Why does building waders in-house matter?
Building waders in-house gives us a direct feedback loop between our production floor and the teams responsible for design, development, materials, testing, and repair. When one of our Wader Makers, lab technicians, or repair specialists sees an opportunity to improve a material, pattern, or construction method, that feedback can move quickly to the people responsible for the product.
That proximity helps us do more work on the front end. Before a wader enters production, we have already evaluated its materials, design, and construction method in the lab and the field. Our goal is not simply to find a problem during final inspection. It is to prevent that problem from reaching the production floor in the first place.
How many steps does it take to make a pair of fishing waders?
Some of our waders require more than 150 individual steps to complete. Depending on the model, those steps can include precision cutting, stitching, seam taping, component installation, stockingfoot attachment, hardware assembly, inspection, and final testing.
Each step depends on the accuracy of the work before it. A clean seam begins with an accurate cut. Reliable tape adhesion depends on controlled preparation, heat, and pressure. Proper fit depends on patterning and consistent assembly. The finished wader is the sum of those details.
How do we test Simms waders for leaks?
Every wader we build in Bozeman receives an individual final test before we package it. We turn the wader inside out, fill it with water, and inspect it for leaks. Only after it passes inspection do we turn it right-side out, dry it, and prepare it for delivery.
That final test is one part of our broader quality process. We also test materials, designs, and construction methods before production begins, giving our teams multiple opportunities to identify and address potential problems.

Who are the Simms Wader Makers?
Our Wader Makers are the skilled craftspeople who turn technical fabrics and components into finished fishing waders. They cut, stitch, tape, assemble, inspect, and test the products moving across our Bozeman production floor.
Their work requires consistency, precision, and ownership. Many members of our team also fish, giving them firsthand familiarity with how waders should fit, move, and perform through long days on the water. Every cut, seam and piece of tape has a person—and a standard—behind it.
As our Production Supervisor Kyle Dresser puts it, “It’s the people and the process that drive everything we do.”

How does angler feedback influence Simms wader design?
We gather feedback from guides, anglers, field testers, our employees, our Wader Makers, and our repair team. Because many of us regularly wear the products we help create, those observations can inform fit, mobility, durability, component selection, and construction.
Our repair center adds another important perspective. Used gear shows us where a product has been stressed over time, giving our product and manufacturing teams practical information that can influence future development. That connection—from the river to repair to the production floor—is one of the advantages of keeping those teams close.
How does the G3 PRO collection carry the process forward?
The G3 PRO collection is a current expression of our Bozeman wader-making tradition. Every pair we build in our Bozeman facility is cut, stitched, taped, assembled, and individually tested by our Wader Maker team.
The collection combines material development, updated patterning, and years of feedback from guides and anglers with the hands-on manufacturing process behind one of our most established wader families.
Why does Manufacturing Day matter to Simms?
Manufacturing Day takes place on the first Friday of October, with related events continuing throughout the month. For us, it is a chance to recognize the skill, precision, and pride behind every wader we build in Bozeman—and the people who carry that work forward.
But our process is bigger than one date on the calendar. Every day on our production floor reflects the same commitment: choose the right materials, test the design, respect the process, and build gear anglers can trust when they step into the water.
Innovative design and technical materials help define our waders. The hands and judgment of the people who build them bring those elements together. Sometimes what distinguishes a product is not only what you see, but how we make it—and who makes it.