KUIU Shifts its Deep Outdoor Heritage to Focus on Professional Workwear
When I was given the opportunity to try a pair of KUIU Groundwork Stretch Work Pants, I jumped at the chance. I’ve been wearing some of their gear for a couple of years, and have high expectations for their first purpose-built work pants.
If you’re unfamiliar with the KUIU name, it’s understandable, especially if you’re on the East Coast. It’s a brand that has developed some of the best Rocky Mountain backcountry clothing for hunters and hikers.
But does that translate over to quality work pants for tradesmen?
Now that I’ve had a chance to wear them for a while, I’ll share what I’ve learned about the Groundwork pants and whether you should consider them for your jobsite wardrobe.
Pros
- Durable build
- Excellent comfort
- Outstanding stretch and movement
- Effective knee pads
- Zippered mesh side vents improve airflow
Cons
- Expensive
- Fit runs ~1/2-size small
KUIU Groundwork Stretch Work Pants: What They Say
Here’s part of how KUIU describes their Groundwork pants:
“The Groundwork Pant doesn’t ask permission—it charges straight into the hard crap most pants would quit on.
Zero hesitation. Zero compromise. These pants don’t just survive the abuse—they spit in its face, refuse to acknowledge limits, and back up every inch of their brutal reputation.
Wear them hard. They’ll wear harder.”
Key Features
- 4-way Stretch: Moves with you as you walk, bend, and crawl
- Gusseted Crotch and Articulated Knees: Improves mobility and durabilty
- Durability Panels: Heavy-duty material covering the most vulnerable areas
- Removable Knee Pads: 9mm Ortholite knee pads for extra protection
- Hip Vents: Zippered, mesh-lined vents to allow more airflow
- FUZE Treatment: Antimicrobial treatment to fight odor buildup
- DWR Treatment: Shed light precipitation and moisture
- Brushed Interior: Improves comfort against your skin
Specifications
- Main Material: Stretch woven nylon, 90% nylon, 10% Spandex (226 g/m²)
- Durability Panel Material: Double weave, 87% nylon, 13% Spandex (245 g/m²)
- Zippers: YKK
- Weight: 24.3 ounces (21 ounces without kneepads)
- Pockets
- Left/right hand pockets
- Left/right rear pockets
- Right thigh utility drop pockets
- Left thigh zippered cargo pocket
- Colors: Asphalt, Rodeo, and Tobacco
- Sizes: 30 – 44 waist, 34-inch inseam
KUIU Groundwork Stretch Work Pants: What We Say
The way KUIU describes Groundwork pants, they sound pretty amazing. If you want the short version of my review, they are.
But of course, I’m not going to leave it at that, so for those of you who want the details, here we go.
To get a feel for these pants, I first spent some time clearing a hillside on my property. It’s steep, and I haven’t cut an even path on it yet, so it required some creative movement and positioning as I hacked through vines, shrubs, and small trees.
Fit

First of all, pay attention to the fit. These pants are sized snug. I normally wear a 36-inch waist, and that gives me enough room that I have to wear a belt with most of my work pants.
I ordered a 36, and they’re tight enough to stay up on their own. They fit more like a true 35-inch. So, if the size you typically wear is already pushing toward snug, or you’re anticipating backyard BBQ season, order up a size.
Note that these only come in a 34-inch inseam at the moment. That’s a good fit for a nice range of people, but it may not work for notably tall or short people. For reference, I’m 6 feet, 2 inches tall, and normally wear a 34-inch inseam. The length was perfect for me.
Comfort

The fabric feels very similar to Truewerk’s T2 pants, though the material blend is a little different. The pants’ thickness works well to reinforce KUIU’s durability claims, but it means you need to pick your seasonal battles.
Think of the Groundwork as a 3-season pant. No matter what part of the country you’re in, it’s great for the Spring and Fall. For northern areas, it’s a good summer pant.
Down here in Florida, it’s a little too hot for our hot, humid dog days. It’s right at home during our mild winters, though.

I did most of my testing in March, and our highs were already moving into the mid-80s. Normally, that would be my signal to switch to thinner or more breathable pants. But KUIU brings over its zippered mesh side vents from their hunting pants, and it really helps on warmer days, especially when those spring winds are moving.
Movement

As for stretch and movement, they’re a sigh of relief compared to any cotton-based work pants I’ve worn. I expect that from any 4-way stretch pant made with synthetic materials.
It’s not just the material’s inherent ability to stretch, though. The gusseted crotch and articulated knees really helped as I leaned into the side of the hill with my feet at different heights for stability.
That kind of positioning would have been uncomfortable in traditional work pants and challenged their stitching to hold. Which brings up another point: KUIU’s durability panels. This heavy-duty material is strategically placed to ensure high-stress areas get the reinforcement they need to hold up to challenging jobs that require you to stretch to the limit.
Knee Pads

KUIU didn’t have to sell me on the idea of removable knee pads. I’ve worn similar designs in the past, and I greatly prefer them over bulkier knee pads that I have to strap on. To get a feel for the padding comfort, I tested them on concrete and tile flooring in addition to the ground on my landscaping project.
The pads are from Ortholite and are 9mm thick with 11mm raised sections. Overall, they make for comfortable ground-level work, and were able to help overcome the consistent low-level knee pain I deal with.
The pads are generously sized, but I found I had to adjust them to make sure they stayed centered well. At first, the movement of the knee section would draw the pad up as I dropped to one or both knees. However, the longer I wore them, the more they seemed to loosen up and find their place more naturally.
Pockets

There are a few things worth pointing out about the pocket design. First of all, these are the most pocket knife-friendly pants I’ve worn. Most of the time, there’s an additional layer of fabric on the corner of the pocket entry to reinforce it as a high-wear area. But KUIU goes with a different material altogether. Not only is it durable, but my knife clip slides onto it so much easier than any of my other work pants.
One of the pockets I almost can’t live without these days is a cell phone drop pocket on my right thigh. The Groundwork’s design splits this pocket into three sections. It’s great for your carpenter’s pencil, a torpedo level, small meter, or other tools, but it was a squeeze to get my iPhone 15 Plus in.
Instead, it was better to store it in the zippered pocket on the left thigh. Even though it’s not as convenient on that side (speaking for all the righties in the crowd), I appreciate the security of the zipper.
Should You Buy Them?
KUIU Groundwork Stretch Work Pants are outstanding. The comfort, movement, and design can go toe-to-toe with the best work pants on the market. Plus, the side vents add an extra layer of comfort you won’t currently find from other brands.
That high-quality design comes at a cost, though. At $179, they’re clearly in the premium workwear category. They’ll outlive most pants from other workwear brands, so consider that it’s very possible to go through 5 or 6 pairs of cotton-based workwear pants for every Groundwork you buy.
As much as I have enjoyed wearing the Groundwork, it’s not for everyone. If you don’t need the knee pads, there are less expensive alternatives with similar durability. KUIU’s Attach Pant is one solid alternative.
Keep in mind the synthetic materials as well. If you work around high heat and/or sparks, it’s possible to melt the material.
That said, if your work frequently has you on your knees, it’s such a good work pant. There’s nothing from the world of cotton that compares, and its design makes it a strong contender among premium synthetic options.
