Airstream Atlas 25MS Review: A Class B RV With a Slide-Out, Storage, and Huge Dry Bath

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We review a lot of RVs, and most Class B motorhomes have the same problem.

They are easy to drive, easy to park, and great for traveling, but once you step inside, everything feels tight. The bed is usually a compromise. The bathroom is usually a wet bath. And storage is usually something you have to fight for, or tow behind you.

But the Airstream Atlas 25MS is different.

This is a Class B motorhome with a slide-out, a Murphy bed, a real dry bath, lots of storage space, and a level of luxury that you just do not see in most small motorhomes.

Honestly, if Susan and I were going to buy a Class B RV, this is the one I would seriously consider. It is expensive, and it is not for everybody, but after walking through it, I can see why so many people think of the Atlas as one of the top luxury Class B motorhomes on the market.

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Quick Specs for the Airstream Atlas 25MS

Here are the specs from the model we walked through:

• Length: 24 feet 9 inches
• GVWR: 12,125 pounds
• Cargo carrying capacity: 898 pounds
• GCWR: 15,250 pounds
• Tow capacity: 4,000 pounds
• Sleeps: Up to 2 people
• Fresh water tank: 23 gallons
• Gray water tank: 31 gallons
• Black water tank: 27 gallons
• Chassis: Mercedes-Benz Sprinter
• Bathroom: Rear dry bath
• Bed: Murphy bed
• Slide-out: Yes

The big thing to notice here is that this is really designed for two people. It is not trying to be a family camper. It is not trying to squeeze in bunks or extra sleeping areas.

It is built for a couple who wants to travel comfortably, drive something manageable, and not give up the luxury features they would expect in a bigger motorhome.

First Impression: This Class B Feels Like a Luxury Motorhome

The first thing I noticed when I walked into the Airstream Atlas 25MS was how upscale it felt.

Some Class B RVs feel like a van conversion with some cabinets and a bed squeezed inside. This does not feel that way.

The Atlas feels much more like a small luxury motorhome. The finishes, lighting, cabinetry, controls, and layout all feel intentional. Nothing feels cheap or thrown together.

And the real reason this floor plan works is the slide-out.

Without that slide, this would feel like another tight Class B. But with the slide out, the main living area opens up enough that you actually have room to sit, eat, relax, watch TV, and sleep without feeling like you are constantly shifting things around.

That is the biggest difference between the Atlas 25MS and many other Class B RVs.

Mercedes-Benz Chassis and Cab Area

The Atlas 25MS is built on the Mercedes-Benz Sprinter chassis, and that matters.

The cab area feels more like a luxury vehicle than a basic RV cockpit. You get the Mercedes dash, driving position, comfort, and safety features, which is one of the reasons people are willing to pay more for this type of motorhome.

The front seats swivel around, so when you are parked, the cab becomes part of the living space. That is always a smart use of space in a small RV.

There are also controls and electronics tucked up front where they are convenient but not in the way. Airstream did a good job keeping things clean and hidden while still making them easy to reach.

The Slide-Out Living Area Is the Star of This RV

The heart of the Airstream Atlas 25MS is the slide-out living area.

This one space works as:

• Your sofa
• Your recliner
• Your dinette
• Your entertainment area
• Your bedroom

That is a lot to ask from one area, but it works surprisingly well.

The sofa is comfortable, and it has an electric recline feature, so you can sit back and watch TV without feeling like you are sitting on a stiff RV bench seat.

There is also a center section that folds down so you can put a drink, tablet, phone, or laptop there. That may sound small, but in a Class B RV, every little usable surface matters.

For dining, there is a table setup that mounts in front of the sofa. So instead of having a separate dinette taking up space, the same seating area becomes your place to eat.

That is exactly how a small motorhome should be designed.

The Murphy Bed Makes This Floor Plan Work

The Murphy bed is one of the biggest reasons the Atlas 25MS feels so livable.

During the day, the bed is up and out of the way. You get your sofa and living area.

At night, you lower the sofa, release the bed, and pull the Murphy bed down into place.

I like this setup because you are not stuck staring at a permanent bed all day long. In a small RV, a fixed bed can eat up almost the entire living space. This Murphy bed gives you both a real sleeping area and a real seating area.

The bed measured about 60 inches wide by 72 inches long. But if you sleep sideways, you can get closer to a 72-by-72-inch sleeping space, which is almost like a short king.

For two people, that is a pretty comfortable setup in a Class B motorhome.

And Airstream includes straps to hold your bedding in place when the bed is stored upright. That means you do not have to completely remake the bed every night, which is a big deal if you are traveling often.

The Bed Area Has a Nice Window and Storage

Above the Murphy bed, there is a window and storage on both sides.

Some people may wonder why you would want a window above the bed, but I actually like it. On a nice night, you can open things up, get a cross breeze, and enjoy some fresh air while you sleep.

You also get reading lights near the bed, which is great if one person wants to read while the other goes to sleep.

That is one of those little details that matters in real life. In a small RV, you do not have separate rooms, so lighting and airflow make a bigger difference than people think.

Entertainment Setup With a Televator

Across from the sofa and Murphy bed is the entertainment area.

The TV is hidden in a televator, so it lowers down into the cabinet when you are not using it. When you want to watch TV, it rises up from the cabinet and sits directly across from the sofa, bed, or dinette area.

That is a great setup.

You are not craning your neck to watch TV from some weird angle. You can sit on the couch, lie in bed, or eat at the table and still have a good view.

There is also a soundbar on top of the TV, storage above, outlets nearby, and hidden access to the breakers and fuses.

Again, Airstream did a good job making this area feel clean while keeping the practical stuff accessible.

Skylight, Power Shades, and Airflow

One thing I really liked in the Atlas 25MS is how much thought went into airflow and lighting.

There is a good-sized skylight in the living area with a screen and a privacy shade. You can open it for airflow during the day and close it up at night if you want it darker inside.

There are also power shades in several areas, and you can control them from different panels throughout the coach.

That may sound like a luxury feature, and it is, but it is also practical. In a small RV, you may be sitting on the couch, cooking in the kitchen, or getting ready for bed. Having controls nearby keeps you from walking back and forth just to adjust lights, shades, or temperature.

The Kitchen Is Compact but Well Designed

The kitchen in the Airstream Atlas 25MS is not huge, but for a Class B RV, it is pretty well done.

You get:

• A deep sink with a cover
• Integral sprayer
• Two-burner propane cooktop
• Trash can storage
• Drawers and cabinets
• Counter extension
• Outlets
• Convection microwave
• Refrigerator
• Separate freezer
• Pull-out pantry

The countertop space is limited, but that is expected in a Class B. The sink cover and counter extension help create more prep space when you need it.

I also like the pull-out pantry. In a small RV, deep cabinets can become a black hole where cans and food disappear. A pull-out pantry makes everything easier to see and reach.

The refrigerator and separate freezer are also a nice size for this type of RV. You could fit a bag of ice in the freezer and still have room left over.

The Max Air Fan Is a Big Deal

There is a Max Air fan above the kitchen, and I really like that feature.

We have Max Air fans in our Class A RV, and they pull a lot of air through the coach. If you are cooking, especially in a small RV, you need a good way to vent out steam, heat, and smoke.

And if I am cooking, there is probably going to be some smoke.

A fan like this also helps keep the RV comfortable when the windows are open. It pulls air through the rig and helps keep things from feeling stuffy.

This is one of those practical features that does not always get enough attention, but it makes a big difference when you are actually using the RV.

The Rear Dry Bath Is One of the Best I’ve Seen in a Class B

The bathroom is probably the biggest surprise in the Airstream Atlas 25MS.

Most Class B motorhomes have a wet bath. That means the shower, toilet, and sink are all crammed into one small space, and everything gets wet when you shower.

The Atlas has a real rear dry bath.

And for a Class B RV, it is excellent.

The entire rear of the motorhome is dedicated to the bathroom area. You get a separate shower, vanity, toilet, medicine cabinet, closet space, and drawers.

The shower has a corner glass door setup instead of a shower curtain, which I like much better. It feels more residential and less like a compromise.

We measured the shower height at about 6 feet 5 inches. I am about 5 feet 11 inches and around 190 pounds, and I fit in the shower just fine. It is not huge, but for a Class B motorhome, it is very usable.

Bathroom Storage Is Better Than Expected

The bathroom also has more storage than I expected.

There is a medicine cabinet with multiple cubbies, storage under the sink, a towel rack, and a cedar-lined closet with adjustable shelves.

Next to that is a wardrobe closet with hanging space, adjustable shelving, and full-extension drawers down below.

This matters because one of the biggest complaints with Class B RVs is storage. You may have a beautiful coach, but if there is nowhere to put clothes, towels, shoes, toiletries, and supplies, it gets old fast.

The Atlas gives you real storage in the bathroom area, which makes it much more practical for longer trips.

The Bathroom Fan Helps Control Humidity

There is also a Max Air fan in the bathroom.

That is a big deal because humidity is one of the biggest enemies inside an RV. Every time you shower, you add moisture to a small enclosed space. If that moisture does not get vented out, it can lead to odors, mildew, and other problems over time.

Since there are no windows in the bathroom, that fan matters even more.

I would much rather see a good Max Air fan in a bathroom than a cheap little standard RV fan that barely moves air.

Toilet Space Is Tight but Not Terrible

When I sat on the toilet, I did not pass the elbow test on either side.

So no, the toilet area is not huge.

But with the bathroom door closed, I still did not feel claustrophobic. That is the important part. In many Class B RVs, the bathroom can feel like a closet. This one feels tight in spots, but still usable.

For a small motorhome, that is a win.

Exterior Storage Is Surprisingly Good for a Class B

Outside, the Atlas 25MS also solves another common Class B problem: lack of storage.

There are multiple exterior storage compartments, including compartments under the slide-out and on the other side of the RV.

One feature I really liked is that these compartments lock and unlock with the Mercedes key fob. They do not use the same cheap RV compartment locks that can often be opened with common keys.

That is a much better setup.

The compartments pop open easily, and they give you more outside storage than I normally expect from a Class B motorhome.

There is also a utility bay that works the same way, with access through the key fob system.

What We Like About the Airstream Atlas 25MS

There is a lot to like here.

The biggest thing is that the Atlas 25MS does not feel like a typical cramped Class B. The slide-out changes the whole feel of the coach.

I also really like the Murphy bed setup. It gives you a comfortable sleeping area without permanently sacrificing the living room.

The rear dry bath is probably the best feature for many buyers. If you have looked at Class B wet baths and thought, “No way,” this bathroom may change your mind.

The Mercedes chassis, luxury interior, power shades, multiple control panels, Max Air fans, televator, pantry, and exterior storage all add up to a very high-end RV.

This is not a budget camper. It is a premium touring coach, and it feels like one.

What You Should Know Before Buying One

The Atlas 25MS is not perfect for everybody.

First, it is expensive. Very expensive.

Second, it only sleeps two people, so this is not a family RV.

Third, even though the slide-out makes the interior feel larger, you are still in a compact motorhome. Storage is better than most Class B RVs, but you still need to pack carefully.

Fourth, the cargo carrying capacity is not huge. If you travel with a lot of gear, you need to pay attention to weight.

And finally, the Murphy bed is a great design, but some buyers may prefer a fixed bed that is always ready. Personally, I like the Murphy bed in this layout because it makes the living area so much more useful.

Who the Airstream Atlas 25MS Is Best For

The Atlas 25MS is best for couples who want a luxury motorhome that is easier to drive than a big Class A or Class C.

It is especially good for:

✅ Couples who want a high-end touring coach
✅ Retirees who travel frequently
✅ RVers who want a real dry bath
✅ People who dislike wet baths
✅ Buyers who want Mercedes driving comfort
✅ Travelers who want a smaller RV without giving up luxury
✅ Couples who value quality, storage, and smart design

This is also a strong option for people who want to use their RV for road trips more than long campground stays. It is easy enough to drive, comfortable enough to travel in, and luxurious enough that you do not feel like you are roughing it.

Who Should Not Buy the Airstream Atlas 25MS

This is not the right RV for everyone.

I would probably skip it if:

❌ You need to sleep more than two people
❌ You want a budget-friendly RV
❌ You need a lot of cargo capacity
❌ You prefer a permanent bed
❌ You plan to bring tons of outdoor gear
❌ You want maximum living space for the money

If your main goal is square footage, you can get a lot more space in a Class C or Class A motorhome for less money.

But if your goal is a smaller luxury motorhome that is easy to drive and beautifully built, the Atlas 25MS makes a lot more sense.

Airstream Atlas 25MS FAQs

1. Is the Airstream Atlas 25MS a Class B or Class B Plus RV?

The Airstream Atlas 25MS is commonly considered a luxury Class B motorhome, although Airstream refers to it as a Class B+ because of the power slide-out and expanded living space. It is built on a Mercedes-Benz Sprinter chassis and is much more spacious than many traditional Class B vans.

2. Does the Airstream Atlas 25MS have a dry bath?

Yes, the Airstream Atlas 25MS has a rear dry bath. That means the shower, toilet, and sink are separated more like a residential bathroom instead of being combined into a wet bath.

3. How many people does the Airstream Atlas 25MS sleep?

The Airstream Atlas 25MS sleeps up to two people. It is best suited for couples or solo travelers who want a luxury motorhome rather than a family camper.

4. Does the Airstream Atlas 25MS have a slide-out?

Yes, the Atlas 25MS has a power slide-out. The slide-out expands the living area and helps make room for the sofa, dinette setup, and Murphy bed.

5. Is the Airstream Atlas 25MS good for beginners?

It can be a good RV for beginners who have the budget for it and want something smaller and easier to drive than a large motorhome. However, because it is a high-end RV with many luxury systems, new owners should take time to learn how everything works before taking a long trip.

The Airstream Atlas 25MS is one of the most impressive Class B motorhomes we have walked through.

It solves many of the problems people complain about in Class B RVs. It has a slide-out, a Murphy bed, a comfortable living area, a real dry bath, good storage, and a luxury feel throughout.

It is not cheap. It is not for families. And it is not the best choice if you are trying to get the most RV for the least amount of money.

But for a couple who wants a luxury touring coach that is easy to drive and comfortable to travel in, this is one of the best options I have seen.

If Susan and I were seriously shopping for a Class B RV, this would be the one I would look at first.

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Related Resources:

– Do Class B Motorhomes Have Slide-Outs?

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