Simms G4Z Wader Review: Are They Worth $1,100?

My fishing trips also involve plenty of walking. Four miles of hiking, climbing riverbanks, crossing fast-moving water, and navigating rocks and downed trees isn’t unusual. I need waders that can handle those conditions without making the entire experience miserable.

In March 2026, I started fishing in the Simms G4Z Stockingfoot Waders. After nearly a dozen outings through spring and fall, including cold-water fishing and long walks along the river, I have a pretty good idea of how they perform.

Here’s what I’ve learned, what I like, what could be improved, and whether I think they’re worth the $1,100 investment.

Simms G4Z Wader Specifications

Specifications and MSRP verified against Simms’ product listing in October 2026.

How I Tested the Simms G4Z Waders

I started wearing the G4Zs in March 2026 and used them six or seven times before the end of April. I’ve added roughly another half-dozen trips this fall, putting my total at approximately a dozen outings.

My testing hasn’t involved walking around the backyard or standing in a trout stream for an hour. Most of my outings are full fishing trips on the Salmon River, where reaching productive water can mean hiking long distances over rough terrain.

Depending on the season, that includes climbing steep embankments, pushing through brush, navigating slippery rocks, and crossing sections of fast-moving water. During the winter, ice ledges, anchor ice, floating ice, and severe weather create additional challenges.

That’s why I place so much importance on comfort and mobility. When you’re several miles from your vehicle and the weather turns nasty, problems with your waders can become much more than a minor inconvenience.

Fit and Comfort: The Best Waders I’ve Owned for Long Hikes

The first thing I noticed when putting on the G4Zs was how much of an upgrade they felt like compared with my older G3s.

They’re solidly constructed without feeling unnecessarily heavy or restrictive. In fact, these are the most comfortable waders I’ve owned for covering long distances along the river.

I spend a lot of time climbing banks, stepping over downed trees, crossing rocky sections, and maneuvering into fishing positions. I also frequently kneel on rocks while releasing fish.

Through all of that, the G4Zs have given me just the right amount of room to move.

There’s enough space for cold-weather layers, but they don’t feel excessively baggy when I’m wearing less underneath. I haven’t experienced rubbing, bunching, or any meaningful restriction when walking, climbing, or kneeling.

Some waders have reinforced knee panels that add extra material around the knees. While those may provide additional protection, I’ve found that extra material can sometimes interfere with movement. The G4Z uses a durable lower-leg construction without making me feel like I’m fighting the waders every time I bend my knees.

The overall fit strikes an excellent balance between protection and mobility, which is especially important when you regularly hike several miles before or during a fishing trip.

Cold-Weather Performance: A Noticeable Improvement Over the G3

Winter fishing on the Salmon River is not for everyone.

I’ve fished when the air temperature was in the 20s and the river water was around 32 degrees. Standing in water that cold for an extended period can become miserable, particularly when you’re having a productive day and don’t want to leave your spot.

For me, keeping my feet warm has always been one of the biggest challenges.

I’ve traditionally preferred stockingfoot waders because of the amount of hiking I do. I pair the G4Zs with Simms G3 Guide Wading Boots with Vibram soles.

My cold-weather layering system is relatively simple: one pair of thin wool socks with a medium-weight pair over them, plus thermal or compression pants. I don’t like bulky clothing that limits movement.

I generally wear several upper-body layers with a windproof hooded jacket and carry a backpack so I can add or remove clothing as conditions change.

The Stockingfeet Made the Biggest Difference

The improvement that surprised me most was the new compression-molded neoprene stockingfoot design.

Compared with my G3s, the G4Z stockingfeet feel noticeably more comfortable. The additional molded ridging provides a more supportive feel inside my wading boots, particularly during long hikes.

In my experience, that design also seems to help keep my feet warmer. I suspect the molded structure creates small areas where warmth can be retained, although I haven’t measured an actual insulation difference.

What I can say is that my feet stayed more comfortable during cold-water fishing than they did in my previous waders.

The handwarmer pockets were another welcome improvement. When my hands started getting cold, the fleece-lined pockets gave me a convenient place to warm up. Adding handwarmers made them even more useful.

Breathability: Can You Wear Them in 80-Degree Weather?

One of my priorities is owning a pair of waders that can handle nearly every condition I encounter throughout the fishing season.

That means going from freezing winter temperatures to early fall days when the air temperature can reach 80 degrees.

To be clear, chest waders are never going to be the most comfortable thing to wear in that kind of heat. You’re going to sweat, especially when you’re hiking several miles.

But for a chest wader, the G4Z breathes about as well as I could reasonably expect.

The GORE-TEX Pro construction is designed to provide waterproof protection while allowing moisture vapor to escape. That’s particularly helpful during long walks when you’re generating plenty of body heat.

Even so, I wouldn’t confuse breathability with staying completely dry from perspiration. If you’re moving hard on an 80-degree afternoon, some internal moisture is inevitable.

A Simple Maintenance Tip

One thing I always recommend is turning your waders inside out after use so they can dry thoroughly.

Even when a wader performs well, moisture can build up on the inside. Allowing that moisture to dry is an important part of protecting your investment.

I try to take care of my gear because I expect it to last, especially when I’ve spent this much money on it.

Durability: Brush, Rocks, and Tough River Conditions

Durability is one of the biggest reasons I’ve stuck with Simms over the years.

In the early fall, Salmon River fishing can be particularly tough on waders. Trails aren’t always worn down yet, and getting to certain fishing spots means walking through thick brush and thorns.

I’ve actually used older waders during that part of the season in the past because I didn’t want to risk puncturing an expensive new pair.

This year, I decided to wear the G4Zs, and so far they’ve held up extremely well.

I’ve pushed through vegetation, crossed rocky areas, and spent plenty of time kneeling on rocks while handling fish. I’ve seen no punctures, rips, tears, abrasions, or leaks.

Simms builds the G4Z with four-layer GORE-TEX Pro material through the lower section and three-layer material in the upper. That combination is intended to provide additional protection in high-wear areas while maintaining comfort and flexibility.

After nearly a dozen outings, I haven’t found any evidence that the material is wearing prematurely.

However, I also recognize that no wader is indestructible. Anyone who fishes regularly in the conditions I do will eventually deal with a puncture or pinhole leak.

That’s simply part of fishing hard.

The Waterproof Front Zipper: More Useful Than I Expected

When I first started looking at the G4Zs, I had some reservations about the waterproof front zipper.

The last thing you want when you’re standing in freezing water is to discover that a zipper has started leaking. An equipment failure like that can ruin an entire day of fishing.

Fortunately, the zipper has been one of my favorite features.

The G4Z uses a waterproof YKK AQUASEAL front zipper, and I haven’t experienced any leakage during my testing.

I’ve even been in deeper water where the waterline extended above the lower starting point of the zipper. It continued to perform without any problems.

Beyond waterproofing, the convenience is outstanding.

Putting the waders on and taking them off is easier than with my previous G3s. The zipper also makes bathroom breaks much simpler.

Anyone who has worn chest waders with several layers, a wading jacket, and a backpack knows what a production that can become.

With the G4Z, I don’t need to remove nearly as much clothing or gear. That’s especially appreciated when it’s cold, raining, or snowing.

The construction feels sturdy and reliable, although as with any waterproof zipper, I plan to continue monitoring its performance over time.

Pocket Storage and Suspenders: Small Changes That Matter

Another significant improvement over my previous waders is the storage system.

The G4Z includes exterior chest storage, interior waterproof pockets, and fleece-lined handwarmer pockets.

I keep frequently used fishing equipment such as tippet material, swivels, and hooks in the outside pockets. Being able to reach those items without digging through a backpack is convenient.

The interior waterproof pockets are especially valuable for items like my phone, car keys, and wallet.

Anyone who has spent enough time wading rivers knows that eventually you’re going to fall. Even experienced fishermen can lose their footing, especially in higher water conditions.

It’s reassuring to have protected storage for valuables rather than relying on plastic bags.

There is one small drawback: I’d like the interior waterproof pockets to be a little larger. My phone is on the larger side, and getting it in and out requires some fumbling.

It’s not a major problem, but it is something I’d improve.

I also really like the redesigned suspender system.

With older waders, I sometimes found myself dealing with twisted straps or reaching behind my back to straighten everything out.

The G4Z suspenders are much easier to get into. I can slip my arms through and adjust the fit without having to fight with the straps.

One minor annoyance is that an adjustment strap can hang down into a front pocket. Occasionally, when I reach in to warm my hands, the dangling strap gets in the way.

That and the size of the waterproof interior pockets are the only meaningful design complaints I’ve identified so far.

Simms G4Z vs. G3: Is the Upgrade Worth It?

I’ve used Simms waders for roughly 15 years, so comparing the G4Z with my previous G3s was one of the most interesting parts of this review.

My G3s served me well, and I still consider them excellent waders. But the G4Z delivers several improvements that I appreciate on nearly every outing.

Comparison based on my firsthand experience with my previous G3 waders, not a controlled laboratory test or a specification comparison with every current G3 model.

For me, the most important upgrades are the stockingfeet, zipper, and overall comfort.

If your existing G3s are still in excellent condition and you only fish occasionally, I wouldn’t necessarily recommend replacing them immediately.

But if you spend long days on the river, frequently fish cold water, and value the additional convenience, the G4Z is a meaningful upgrade.

Choosing the right waders comes down to more than price. Fit, materials, insulation, and the type of fishing you do all make a difference. For a closer look at these considerations, read our complete guide to choosing fishing waders.

Warranty, Repairs, and Long-Term Ownership

Part of what keeps me coming back to Simms is the company’s commitment to repair service.

Over the years, I’ve learned that even very good waders can eventually develop leaks. Sharp rocks, thorns, and normal wear all take their toll.

Simms provides online resources explaining how to locate leaks and make certain repairs, which is helpful for anglers who want to maintain their equipment.

According to the company’s current warranty information, the G4Z includes a 60-day replacement policy for leaks and repairs during the first year. After that, repair options are available depending on the problem and applicable policy.

I consider access to repair services an important benefit when buying expensive waders. I’d much rather maintain a quality pair than replace cheaper waders every season or two.

It’s worth reviewing Simms’ current warranty terms before purchasing, since repair eligibility and charges can vary.

Are the Simms G4Z Waders Worth $1,100?

There’s no getting around it: spending roughly $1,100 on a pair of fishing waders is a major investment.

I’ve been fishing long enough to remember when I would never have considered spending that kind of money on waders.

But I’ve also learned that there’s a big difference between equipment that simply keeps water out and equipment that makes an entire day on the river more comfortable.

When you’re regularly hiking several miles, crossing fast-moving water, and standing in freezing conditions, the quality of your waders matters.

Comfort, reliability, mobility, and practical features can make the difference between an enjoyable day of fishing and one spent thinking about how uncomfortable you are.

For the amount of fishing I do, I believe the G4Zs are worth the money.

They’re not necessary for everyone. Someone who fishes a handful of mild-weather weekends each year can certainly find less expensive waders that meet their needs.

But for someone who fishes frequently, puts considerable mileage on their gear, and expects to use the same pair through multiple seasons, investing in high-quality waders makes sense.

I can’t yet say exactly how many years these particular G4Zs will last. What I can say is that they have performed extremely well through my initial testing, and their construction gives me confidence.

Final Verdict: Would I Recommend the Simms G4Z?

After almost 40 years fishing the Salmon River, I’ve come to appreciate equipment that does its job without getting in the way.

That’s exactly what I want from my waders.

The Simms G4Zs have been outstanding so far. They’re comfortable enough for long hikes, flexible enough for difficult river crossings, and protective enough for cold-weather fishing.

The compression-molded stockingfeet are a noticeable improvement over my older G3s, particularly when it comes to comfort and keeping my feet warm. The waterproof front zipper makes putting them on, taking them off, and dealing with bathroom breaks much easier.

I also appreciate the improved suspenders, handwarmer pockets, and waterproof interior storage.

My complaints are minor. I’d like a little more room in the waterproof pockets for larger phones, and I’d prefer that the adjustment strap didn’t hang into the front pocket.

Other than those issues, I haven’t found much to criticize.

It’s still early in the life of these waders, and I intend to continue evaluating their durability over time. But based on my experience so far, the G4Zs are the most comfortable and functional waders I’ve owned.

If you fish hard, cover serious ground, and spend long days in cold water, I believe the Simms G4Z waders justify their premium price.

Frequently Asked Questions

Are the Simms G4Z waders waterproof?

Yes. The G4Z uses GORE-TEX Pro fabric and a waterproof YKK AQUASEAL front zipper. I haven’t experienced any leaks during approximately a dozen fishing trips, including time spent in deeper water.

Are the Simms G4Z waders good for winter steelhead fishing?

They’ve performed very well for me in winter conditions on the Salmon River. The improved stockingfeet have been particularly helpful for comfort and perceived warmth. However, the waders themselves aren’t a substitute for proper insulating layers, socks, and boots.

What’s the biggest difference between the Simms G3 and G4Z?

For me, the biggest improvements are the front zipper, more comfortable stockingfeet, upgraded storage system, and easier-to-use suspenders. Those changes are particularly noticeable during long fishing days.

Are Simms G4Z waders worth the money?

For serious anglers who fish frequently in challenging conditions, I believe they are. Casual anglers may be better served by a less expensive model, but I value the comfort and performance enough to justify the investment.

Editorial note: This review is based on Stuart Wright’s firsthand experiences from March through October 2026. Product specifications, pricing, and warranty information were independently checked against Simms’ published information. Long-term durability conclusions may change with additional testing.