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The Modular X-Pac Backpack System
Every Boundary backpack is designed to work together. Swap, attach, or combine modules to build the perfect setup—whether it’s for a quick trip, a workday, or anything in between. Modular examples:
EXM
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26L
Aux Compartment
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23L
Aux Compartment
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23L
Stasis Pro
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46L
Made with X-Pac®. Because Ordinary Isn’t Enough
We use only the best. X-Pac® with X-PLY® delivers unmatched strength, waterproof performance, and long-term durability—without adding weight.
Pockets with Purpose
Intelligent internal organization. Soft mesh pocket, hidden compartments and more. There's a place for everything you need, plus some surprises.
Obsessed Over Every Detail
From magnetic hardware to weatherproof fabrics, every detail is dialed for durability. Find out what makes our packs the best in the game.
The Sum of Stronger Parts
We source every buckle, zipper, and fiber from industry leaders. So your backpack performs as beautifully as it’s designed. Meet the brands that help build Boundary.
Blog posts
PFAS Coatings, The Dangers and Alternatives.
There is a silent monster lurking in your closet that you probably didn't even know existed. It's likely resting on the outer layer of your ski jacket, on the edge of your gloves, or maybe it's on ... more
Waterproof Bags
Everything at Boundary Supply is done with purpose. From design to production, our goal has always been goal to create some of the most purpose-driven backpacks on the market. Specializing in every... more
Behind the Design Part 1
Why We Redesigned the Boundary Supply Logo Since 2017, we've been focused on one thing: making rad gear that works hard and looks good doing it. But even the best gear needs to evolve—and so d... more
Banff Weekend Getaway
A Weekend in Banff, Alberta Every now and then, you need to hit pause on everyday life and sneak away with your favorite people. That’s exactly what this past weekend in Banff was all about. Six ... more
Testimonials
"Designed to excel as an everyday backpack, keeping gear well organized and accessible."
"Boundary Supply Errant is versatile, durable, and offers a great bang for your buck...”
"I love this backpack, highly recommend!”
