Mountainsmith Apex Backpack Review (Testing New 2023 Model)

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👉 Jump to: Review Summary | Video Review | Features Review | Specs Chart | Alternatives | FAQs

My detailed and candid Mountainsmith Apex backpack review will help you decide if this pack is right for you. 

In brutal honesty, it may not be for two key reasons — your build and your trip length. But for the right person, it’s undoubtedly one of 2023’s best backpacking and hiking backpacks. 

I spent tons of time and effort personally testing the Mountainsmith Apex so you know exactly what to expect. My friend and I even went on a 5-day backpacking trip to test it (and 7 other bags) in real-world conditions. She’s petite, so my husband, who has a very different frame, also took the pack out on a second test. 

Trust me, you won’t find a more considered, comprehensive review of the Mountainsmith Apex anywhere else! And if you decide the Apex doesn’t meet your needs, consider the two alternative packs listed at the end of this article. 

Mountainsmith Apex Review Quick Summary

All things considered, I’ve rated the Mountainsmith Apex 60 4.6 out of 5 stars. Fully extended, this spacious pack offers 70L of volume and has an impressive 60-lb (27.2-kg) carry capacity. Its load transfer ability and generous padding make it highly comfortable. 

Hands down, the Mountainsmith Apex 60 is a fantastic pick for multi-day trips and long thru-hikes. Its durability and lifetime warranty make it an even more compelling investment. Plus, the Apex comes at a fantastic value with a $219.95 price tag that beats out competing products. 

However, due to its singular size, not every consumer will love the Mountainsmith Apex 60. 

The Mountainsmith Apex 60 is best suited for tall individuals. Specifically, it accommodates torso lengths of 18 – 21 in (45.72 – 53.34 cm). Though, its height adjustable feature is very difficult to maneuver, and the pack is also on the heavier side. 

But the Mountainsmith Apex is an absolute winner if you have the right build and need the storage space. Very few backpacking packs can compete with its key features. 

Check out the Alternatives section if you decide the Mountainsmith Apex doesn’t meet your needs. I overview two competing backpacks that I’ve personally and compared side by side to the Apex.

Video Review Mountainsmith Apex

You can keep scrolling for my detailed Mountainsmith Apex review.

Or click play on my video review rounding up the 8 top backpacking backpacks I compared on our trip in Utah.

(Note: the Mountainsmith Apex section starts at 01:42 in the video).

Mountainsmith Apex Features Review

That’s the quick summary of my Mountainsmith Apex review. Now, let’s get into all the technicalities. Read to the end to know exactly whether or not this backpacking pack is for you.  

This section covers every key feature of the Mountainsmith Apex 60 (click to jump around the post):   

Size

⭐ STAR RATING: 4 / 5 stars 

The Apex is available in a singular size, and unfortunately, one size does not fit all. Skycie, who’s 5’ 5” (165 cm) with a petite frame, found this pack to be too large, even with all the compression straps tightened. 

Philip, on the other hand, is 6’ 1” (185 cm) and 190 lbs (86.2 kg). His build perfectly fit the Apex’s shoulder straps, hip belt, and torso length. As shared, this backpack is best suited for larger individuals. 

I wish it were more accommodating to other body types. Competing products, like the Hyperlite Southwest, come in multiple sizes. The same applies to the Osprey Aura and Atmos, which are even tailored for female and male builds. But I appreciate that Mountainsmith clearly specifies torso and waist belt measurements. This way, purchasers aren’t surprised by the fit.  

All this aside, the Mountainsmith Apex 60 wins points for spaciousness. When fully extended, it has a volume of 70L. Though, I wanted to understand how this volume is distributed. So I took inspiration from ASTM International’s standard test for backpack capacity.  

For this test, I used plastic golf balls — hundreds of them! Estimating that there are roughly 12 golf balls in a liter, here’s how various Apex compartments measured up: 

• Top lid – 170 golf balls / 14.2L 
• Front pocket (with the expandable sleeve empty) – 274 golf balls / 22.8L 
• Side pocket (2x, with the main compartment empty) – 58 golf balls / 4.8L 
• Hip belt pocket (2x) – 25 golf balls / 2.1L 

According to Mountainsmith, the “large front panel expansion sleeve adds up to 10L.” The brand also states that the “large zippered pocket on the front panel adds up to 10L of storage.” So, given that the expandable sleeve was empty when measuring, its 22.8L total makes sense. 

The main compartment is 22L based on the above math. But as noted, the side mesh pockets were measured with the main compartment empty. If it were full, these mesh pockets’ volume would be more constricted. 

Point being, this test isn’t perfect. But it demonstrates the incredible spaciousness of the front pocket. And, it shows that the Apex’s hip belt pockets are far larger than any other backpacking pack I tested. 

💡 Know Your Options: See this chart on our “Best Backpacking Pack” round-up for more comparative data.

Weight

⭐ STAR RATING: 4.5 / 5 stars 

Unloaded, the Mountainsmith Apex 60 weighs 4.63 lbs (2.1 kg). The 80L version clocks in at 4.9 lbs (2.22 kg). These backpacks don’t fall in the ultralight category, and they’re a touch heavier than similar packs. But in my opinion, these weights are fair given these backpacks’ volumes.  

With ample space and a highly reliable hip belt, the Apex is made for heavy loads. It can carry up to 60 lbs (27.2 kg), which is more than most backpacking packs. This is great for long thru-hikes that require excess gear and food supplies.

But remember, new backpackers, just because it can carry heavy loads, doesn’t mean you should. Experts advise that your pack should weigh no more than around 20% of your body weight. If your pack weighs 60 lbs (27.2 kg), you should weigh 300 lbs (136.1 kg) — and/or be in really good shape. 

Because Skycie is petite, her pack weighed 20.7 lbs (9.4 kg) during testing. My husband’s pack weighed 34 lbs (15.4 kg), which he managed well given his fitness level and 190-lb (86.2-kg) frame. Honor your abilities to get the most out of this well-constructed pack! 

Height Adjustable

⭐ STAR RATING: 3 / 5 stars 

Though only available in a singular size, the Apex has a height-adjustable feature. This accommodates torso lengths ranging from 18 – 21 in (45.72 – 53.34 cm). 

If you’ve never measured your torso length, see this guide by REI. Though to give you some general insight, I’m 5 feet tall and my torso length is around 13 in (33 cm). As I share in our “Best Backpacking Packs” YouTube video, the Apex is made for big trips — and big people. 

I appreciate Mountainsmith’s transparency regarding fit. Not all brands make measurements as clear to buyers. But while I love this customizable feature, I’m disappointed by its functionality.

This adjusting panel has double-sided hook-and-loop fasteners. Think Velcro, but in this case, much stronger. After many, many attempts, I could not get the panel to budge. I even called Mountainsmith’s customer service, inquiring how to use this feature. Unfortunately, I never got a call back. 

Finally, after many attempts of his own, Philip got the panel to move. He slid a sturdy, flat sheet (similar to a clipboard) onto one Velcroed side. This allowed him to pry back and move the other without it sticking. 

Despite this frustrating process, I’ve given the feature 3 stars simply because once it’s in place, it’s definitely not moving! My guess is that this rigid construction is necessary to accommodate heavy loads. But regardless, don’t plan on sharing this pack. Once it’s fit for you, you won’t want to go through this hassle again. 

Comfort

⭐ STAR RATING: 5 / 5 stars 

The Mountainsmith Apex 60 has several features that promote comfortability. First, its pack panel is made with molded EVA foam. This grants breathability, and protects both a user’s upper and lower back.

EVA/PU foam padding is seen on the shoulder straps and hip belt. The tuning fork hip belt also has an incredible load transfer ability. The pack’s 8mm hoop frame and 2mm PP frame board also make carrying heavy loads possible. The same can be said for its lower-side compression straps, which help to balance weight. 

Given these technical features, Philip found the pack to be highly comfortable, even with a 34-lb (15.4-kg) load. Note: this 5/5 comfort rating is based on his opinion solely. Reason being, the Apex is made for someone his size. If your torso length is smaller than 18 in (45.7 cm), you may not find this pack to be comfortable. 

👉 Need a Different Size? If you’re petite like Skycie and me, opt for a pack that comes in multiple sizes. This is the case for both the backpacks listed in the Alternatives section. 

Internal Organization

⭐ STAR RATING: 5 / 5 stars 

The Apex’s main compartment is incredibly spacious. A 3-season Big Agnes sleeping bag fits inside horizontally with plenty of room to spare. Top access and a U-shaped zipper on the front face provide easy access to all of your gear. 

The main compartment has a singular pocket intended for a hydration pouch. A versatile clip allows you to hold any style of reservoir in place. Then, you’ll pull the hydration hose through the external port. This is set on the top-center of the back panel. 

Aside from main compartment storage, the pack also features internal access to its lid. This large, zippered pocket has a key clip, ensuring these are safe during your backpacking trip. 

Lastly, both the main compartment and lid feature vibrant, yellow lining. This contrast makes it easier to spot your gear, especially in low-light conditions. Plus, this lining is fully recycled, which I discuss more in the Materials section. 

External Organization 

⭐ STAR RATING: 5 / 5 stars 

The Mountainsmith Apex also boasts several external organization features. Along with an internal pocket, its lid has a separate compartment accessed from the outside. The high-visibility lining is seen here as well.  

On either side, you’ll find deep mesh pockets. They’re ideal for excess water, including the tall and wide 48L bottles by Nalgene. Though, given its size, you can use either mesh pocket to hold a wide assortment of gear. 

The front face of the Apex also has a large, zippered compartment. This opening extends the vertical length of the entire pack. Again, this grants easy access and versatility. 

Directly behind the front zippered compartment is another deep pocket. This expansion sleeve provides another 10L of storage. It’s secured with a side-release buckle and compression straps on either side. 

Though, be judicious when deciding what to pack here, as it’s less protected than other areas. Consider using this for larger items you’ll want quick access to, like waterproof layers. 

Lastly, the Apex has two hip belt pockets. These mesh pockets are more spacious than any other backpacking pack I tested. I had no problem stashing my chunky Otterbox-protected iPhone here! They’re also ideal for trail snacks, sunscreen, chapstick, and other small, frequently-used items. 

Materials

⭐ STAR RATING: 4.5 / 5 stars 

The Apex’s primary fabric is 210D Robic Dynajin Nylon Ripstop UTS. Its base fabric is 420D FD Nylon Oxford, and its lining is 210D Recycled Nylon SD Oxford PU. Unless you’re in the industry, these terms are likely foreign to you. Here’s a quick glossary: 

• D – This refers to the denier, or the thickness, of the fabric. Higher numbers indicate greater thickness. So, it makes sense that the base fabric would be a thicker material given the frequency it’ll encounter abrasive surfaces. 
• Nylon – A common fabric choice among backpacking packs. Its synthetic fibers are made of plastic and are incredibly durable. 
• Robic Dynajin Nylon – This proprietary fabric has greater tensile and tear strength than standard nylon 6. Though lightweight, its yarn is as durable as thicker nylon 6.6. 
• Ripstop – Describes fabric that has been layered and woven into a grid. This increases abrasion resistance and prevents tears from extending. 
• PU – Refers to a polyurethane coating that is applied to support a pack’s water resistance. 
• UTS – Aptly named, “Ultimate Tear Strength” coating adds tensile and tear strength, as well as water resistance.

Of course, we all know what recycled means! I love that the Apex’s liner is made with recycled nylon. However, compared to competitors, these materials aren’t the most eco-friendly overall. And while Robic high-tenacity nylon is of high quality, it’s not as lightweight as similar materials. This includes Dyneema fabric, which is used on the Hyperlite Mountain Gear Southwest. 

🌎 Tough Competition: If you’re looking for the best eco-friendly backpacking pack, check out the Osprey Eja / Exos. It’s 100% made with recycled and bluesign®-approved materials! 

Hardware

⭐ STAR RATING: 5 / 5 stars

All Apex hardware is sturdy and high functioning

The Mountainsmith Apex has a variety of hardware styles and sizes. Each suits its purpose and feels highly durable. The side-release buckles are secure, yet easy to open. All zippers glide smoothly, as does the drawstring cord lock that cinches the main compartment. 

The sliders on each compression strap also function well. I was surprised that the sternum compression strap lacks a whistle, as this is standard among backpacking packs. But I won’t knock points off for this, as every piece of hardware is made with long-lasting, strong materials. 

👉 Pro Tip: If you don’t have an emergency whistle in your gear kit, consider these styles from REI. 

Aesthetic 

⭐ STAR RATING: 5 / 5 stars 

Aesthetics are subjective, but in my opinion, the Mountainsmith Apex is a good-looking bag. Being a fan of color and texture, I wouldn’t say it’s as stylish as other backpacking packs. But I like its minimalist appearance and streamlined shape. 

I also like the elements that give it a subtle contrast, such as the varying gray tones. Its pops of seafoam green, seen on the shoulder straps and waist belt, are especially fun. In addition, I’m a fan of the repeating logo pattern on the lid interior and top access point. It’s a tasteful way to go about branding.   

It may not be my particular style, but I can appreciate the overall design. Plus, the Apex is available in Smoke Blue, a dusty baby blue color with bright red accents. Personally, even with its gray undertone, I’d be nervous that this light color would get dirty quickly. But arguably, it’s a cool design. 

Note: like the Comfort section, I rated this pack’s aesthetic 5/5 based on its ideal user. If your body type isn’t suited for this pack, it may not look as appealing. When I wear it, I look like an elementary schooler with a book bag too big! 

Warranty 

⭐ STAR RATING: 5 / 5 stars 

Overall, Mountainsmith offers a very generous warranty. Under its Forged For Life Guarantee, the company will address product problems “by either repairing or replacing it for your entire life.” 

Keep in mind that its customer service page specifies that “some damages that are a result of abuse or misuse may not be covered by warranty.” Examples are not provided, but this is standard, and in my opinion, very fair. 

Repair turnaround time is 4 weeks on average, so plan ahead if you have a backpacking trip approaching. Also, note that the brand will send some replacement parts directly to you. This allows you to expedite minor repairs and lessen environmental impact. Keep this in mind if all you need is a new buckle or compression strap. 

Value

⭐ STAR RATING: 5 / 5 stars 

Mountainsmith Apex Technical Specifications Chart 

Overall, the Mountainsmith Apex 60 and 80 are highly similar. But the larger model may make sense for certain types of trips. 

Use the below table to easily compare size and features of the Mountainsmith Apex 60 vs Mountainsmith Apex 80: 

	Mountainsmith Apex 60	Mountainsmith Apex 80
Max Carry Capacity	Up to 60 lbs (27.2 kg)	Up to 60 lbs (27.2 kg)
Standard Volume	3661 in3 / 60 L	4882 in3 / 80 L
Extended Volume	4272 in3 / 70 L	5492 in3 / 90 L
Dimensions	30H x 12.5W x 9D in (76.2H x 31.75W x 22.86D cm)	32H x 14.5W x 12D in (81.28H x 36.83W x 30.48D cm)
Torso Size	18 – 21 in (45.72 – 53.34 cm)	18 – 21 in (45.72 – 53.34 cm)
Waist Belt	28 – 48 in (71.12 – 121.92 cm)	28 – 48 in (71.12 – 121.92 cm)
Weight	4.63 lbs (2.1 kg)	4.9 lbs (2.22 kg)
Primary Fabric	210D Robic Dynajin Nylon Ripstop UTS	210D Robic Dynajin Nylon Ripstop UTS
Base Fabric	420D FD Nylon Oxford	420D FD Nylon Oxford
Pack Lining	210D Recycled Nylon SD Oxford PU	210D Recycled Nylon SD Oxford PU
Color Options	Phantom, Smoke Blue	Phantom
Price	$219.95	$249.95

Mountainsmith Apex Alternatives

Not sure that the Mountainsmith Apex meets your needs? Take these alternative backpacking backpacks into consideration, or refer to my full guide to how to choose a backpacking backpack.

Osprey Aura / Atmos AG LT 65

Like the Mountainsmith Apex 60, the Osprey Aura / Atmos AG LT 65 is ideal for multi-day backpacking trips. Its carry capacity tops out at 40 lbs (18.1 kg), which is significantly less than the Apex. But it’s highly spacious with a volume of 65L.

Plus, it better accommodates a range of body types. The women’s Aura is available in two sizes, as is the men’s Atmos. Its height-adjustable feature is also far easier to use, and the pack weighs less. This applies even to its heaviest model, the large/extra large Atmos, which clocks in at 4.245 lbs (1.925 kg). For reference, the Apex 60 is 4.63 lbs (2.1 kg). 

Learn more by reading my comprehensive Osprey Aura / Atmos backpack review.    

Hyperlite Mountain Gear 4400 Southwest

Consider the Hyperlite Mountain Gear 4400 Southwest if you love the Apex’s carry capacity. This technical pack is identical in that it can accommodate loads of up to 60 lbs (27.2 kg). In addition, the 4400 Southwest has a total volume of 79.8L, making it ideal for multi-day trips. 

It also suits a variety of builds, with small, medium, large, and tall sizes. As its name suggests, this Hyperlite pack weighs far less than the Mountainsmith Apex. Even its heaviest model, the black 4400, weighs just 2.4 lbs (1.1 kg). 

But its lightweight, durable materials also cause this pack to be nearly double the cost of the Apex. Specifically, the 4400 Southwest is priced at $425, while the Apex 60 is $219.95. 

Weigh all the pros and cons by checking out my Hyperlite Southwest backpack review. 

FINAL VERDICT – Is The Mountainsmith Apex Worth It? 

The Mountainsmith Apex 60 is definitely worth the investment. I can say this with absolute certainty after multiple tests and extensive research. Few backpacking packs can compete with its spaciousness and comfort, even when carrying heavier loads. For this reason, it’s an ideal pick for multi-day backpacking trips. 

It may be on the heavier side, but its strong materials grant durability. And while its torso length adjuster isn’t very user-friendly, it’s highly secure and accommodates a range of heights. I wish that the Apex were available in various sizes and even gender-specific models. 

But if you have the right build, the Mountainsmith Apex will likely be your new favorite backpacking pack. Seasoned backpackers are sure to maximize its lifetime warranty and novices will like its entry-level price. Regardless of your experience level, this pack will serve you benefit on many, many adventures. 

FAQs about the Mountainsmith Apex

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I hope you found this Mountainsmith Apex backpack review to be helpful. If you’ve also taken this pack out on the trail, tell me about your experience in the comments!