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If you live to descend and emerge from rocky canyons and otherworldly formations with calloused hands and sunbaked river sediment, Hyperlite Mountain Gear Southwest 55 pack is a reliable companion.

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Features

  • Superlight, robust main compartment is made with 100% waterproof Dyneema® composite fabric
  • White colorway is made with 50-denier Dyneema for a slightly lower pack weight
  • Black colorway is constructed with 150-denier Dyneema, which is more tightly woven for increased durability with a marginal increase in pack weight
  • 55-liter (3,400 cu. in.) internal volume and 9.8-liter external volume (600 cu. in.) is ideal for weekend, section or thru-hikes or for trips requiring flexibility
  • The top can roll down to make the overall size of the pack similar to the 40-liter version, but that additional pack space can come in handy when you need it
  • 3 external, solid Hardline with Dyneema pockets add an extra line of defense around the gear you'll want to quickly reach at any time without having to open your whole pack
  • Removable, contoured aluminum stays
  • Hardline with Dyneema shoulder straps with 0.375 in. closed cell foam and spacer mesh; 0.25 in. foam back panel pad
  • Roll-top closure system with side straps for vertical compression; side compression straps for horizontal compression
  • Top Y-strap compression is designed to secure gear
  • Hardline with Dyneema hipbelt with 0.125 in. closed-cell rigid foam; zippered pockets on hipbelt with #5 YKK zipper
  • Adjustable sternum strap with self-tensioning elastic
  • Hydro port and internal mesh hydro sleeve hold your hydration reservoir (not included)
  • 4 exterior triglide buckles for optional Hyperlite Mountain Gear Pack Accessory Straps (not included)
  • Proprietary seam sealing on all side seams and behind all sewn-on pack features help keep the elements out
  • Ice axe loop

Imported.

Average weights by size and colorway:
Size White Black
Small 921 g (2 lbs. 0.5 oz.) 978 g (2 lbs. 2.5 oz.)
Medium 944 g (2 lbs. 1.3 oz.) 1,009 g (2 lbs. 3.6 oz.)
Large 967 g (2 lbs. 2.1 oz.) 1,040 g (2 lbs. 4.7 oz.)
Tall 1,009 g (2 lbs. 3.6 oz.) 1,054 g (2 lbs. 5.2 oz.)
View all Hyperlite Mountain Gear Backpacking Packs

Technical Specs

Best Use

Backpacking

Frame Type

Internal Frame

Ultralight

Yes

Gear Capacity (L)

55 liters

Gear Capacity (cu. in.)

3,400 cubic inches

Material(s)

Dyneema composite (Black colorway: 150-denier; White colorway: 50-denier)

Frame Material

Aluminum

Number of Stays

2

Reservoir Compatible

Yes

Pack Access

Top

Number of Exterior Pockets

3

Raincover Included

No

Hipbelt Pockets

Yes

Gender

Unisex

Reviews
70 reviews with an average rating of 3.7 out of 5 stars

Ratings Snapshot

Product Rating

33 out of 50 (66%) reviewers recommend this product

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Average Customer Ratings

Overall Fit Rating

Runs SmallRuns Large

Ease of Use

Difficult to useVery easy to use

Most Helpful Favorable Review

5 reviews with an average rating of 5.0 out of 5 stars
Everything i want in a pack and nothing more.
Derek
6 years ago
I purchased this pack (tall/ black) about two months ago and have taken it on several weekend trips and plan on taking it on my thru-hike of the New England trail early September. I have hiked 30 miles in one day with this pack and taken this pack through rocky climbing terrain in Acadia. Overall I think it’s an amazing pack and have permanently replaced my zpacks arc haul. (I am 6’ 3” 230lbs for the context of this review) TLDR Good: • Simplicity • Storage • Organization • Durability • Adaptability Bad: • Reaching water bottles • Breathability • Heavier than other UL packs** DETAILS Pros: • Simplicity o Huge main compartment o Huge front pocket o Two large side pockets  Fitting two 1L SW bottles each o Two good sized hip pockets  Fit my iPhone x with case and headphones easy • Storage o Went with the 3400 over the 2400 with the mentality that the extra weight was worth the ability to carry…  My gf's sleeping bag and pad plus extra water for her (she's not the biggest hiker/ camper)  Dog food/ treats/ water  In total I have fit and comfortably hiked with (thanks to removable internal frame) a tent/ two sleeping bags/ two sleeping pads/ 5L of water/ food for 2ppl 1 dog x 2 days/ jetboil/ clothes for 1/ etc. • Was pushing 35lbs and honestly still felt comfortable on my back • Organization o I use the pods by HMG one small for food one large for sleeping bag and the fact that they exactly fit to the pack makes setting up camp a lot faster for me, it gives me the ability to get into a routine at camp faster. • Durability o Hard to speak to this after two months but can say that after two months and simple wet cloth rub down this pack looks absolutely brand new not one scratch or tear. o Only had one light shower but can confirm that it was bone dry inside with no liner or pack cover. • Adaptability o If you are going on a day hike or a solo UL Thru Hike and would like the feel of the waymark or Palente packs you can easily remove the internal stays and roll this thing down to almost any size (it’ll weigh a little more from material alone but it really has the exact feel of those packs on your back in my OP) o Ability to carry enough supplies and camping equipment for two people. Check. o Ability to become frameless and compress down to the worlds most awkward looking yet functional day pack. Check. Cons: • Cannot reach water bottles while hiking o Easy enough when you are hiking with someone else who can grab them o I am pretty flexible and have done it but it takes more time and concentration than just unclipping the pack and swinging it around. • Back breathability o Here’s what ill say about the back: does it make your back sweat? Absolutely it is night and day from the arc haul in terms of breathability. Does that matter to me when the rest of my body is sweating in the summer? Not really tbh.  Your back will be the first part of your body to sweat 100% but I sweat when I am active in the summer anyway and don’t really care when I’m hiking still a con though. o Also ties into the reason I’m switching from arc haul. I’m a little rough on my packs and the arc haul has way more going on. I kept breaking the little frame that creates the arc on the back (easy to fix/ replace but the theme of simplicity was what I was going for). Additionally in the winter the idea of not having the freezing New England breeze hit my back is kind of appealing to me. • Heavier than other UL packs?? o This is on the heavier end of the spectrum in terms of mainstream UL packs black adds more weight as well. o **To me it’s a tradeoff, I’m not an extreme UL hiker by any means I like my jetboill and my freestanding tent. I was willing to trade the extra weight for the durability of this pack and the fact that I can carry as much or as little as I want to for each hike in one pack was worth the extra weight to me.
Derek
New England
109 people found this review helpful

Most Helpful Critical Review

5 reviews with an average rating of 1.0 out of 5 stars
Poor value in light of stiff competition
Lihkin
2 years ago
This was a good pack when it first came out as there were very few dyneema packs. However with the current crop of amazing brands selling better backpacks for cheaper, HMG bags are just poor, overpriced products. This is not even taking into account that they have started to shift all their production to Mexico from Maine (while not lowering the cost). Dyneema fabric has been superseded by Ultra (Ultra 200, Ultra 400 and Ultra 800) and several incredible cottage manufacturers are offering super light Ultra 200/ 400 packs (much stronger than Dyneema) for a lower price than HMG with much better options. Checkout the Seek Outside Flight 2 or Gila (super light with incredible carrying capacity in Ultra 400 fabric), Durston Kakwa 40 or 55 (in Ultra 400), SWD Long Haul 50 or Rugged Long Haul 50 (Ultra 400), ULA Circuit and ULA Catalyst. All these bags are not only made with the latest innovative material that beats Dyneema, but they offer features that HMG bags just don't. The HMG bag is essentially a plastic cylinder with uncomfortable shoulder straps and no horizontal stays for better load carry. Don't fall for Dyneema anymore, especially substandard quality being produced by HMG nowadays. Ultra is the future and HMG packs are offering a really poor value compared to the other companies outlined above that are innovating and providing real value (Durston at under 2 lbs in Ultra 200 for the price it is being sold at is a case in point. It is just ridiculous value for that price). HMG has been really good at marketing, but I strongly advise to do your research before you buy their product. If after researching you still like HMG, go for it. But you definitely owe it to yourself to research a bit further to get the best product for your money. I say all the above who had fallen for the HMG hype almost bought the SW 3400, but was turned to the other packs and have now purchased one of those brands. Couldn't be happier.
Lihkin
292 people found this review helpful

Customer Images

Natedoggcamps
Dallas, TX
Rated 1.0 out of 5 stars

Horrible Quality Control, Mexican made, not USA

9 months ago

I wanted to like this pack so bad and I am still rooting for smaller cottage brands. I mean cmon, it’s lightweight, has cool features, and is awesome looking. Unfortunately like some have mentioned, the quality control of these Mexico made bags is highly sub par. The stitching was wildly off on the shoulder straps for the bag I got. So much so it was noticeably crooked on my back immediately when trying it on. I couldn’t image wearing it at full load for any length of time. It would absolutely crush your shoulders and rub at one side of your neck. Unfortunately had to return and keep looking. There seems to be no clear winner amongst the lightweight bags within the plethora of new cottage brands. I was hoping to end the search here but it continues…

Age:35–44
Weight:175–200 lbs.
Height:6'3"
No, I do not recommend this product

Overall Fit Rating

Runs SmallRuns Large

Ease of Use

Difficult to useVery easy to use
Helpful?
Coloradomojo
Colorado Springs
Rated 5.0 out of 5 stars

Quality remains high

3 years ago

So I've read several reviews stating that the quality of the Mexican made packs has tanked. I have a 3 year old Maine made HL SW3400, and absolutely love it so I figured I'd use my 20% discount to order one for my son and if the quality was poor, I'd return it. The Mexican made pack arrived and I proceeded to do a through side-by-side review of the Mexican made versus Maine made packs. There are small variances that happen with any hand made product but the seam-by-seam comparison was great. Materials appear to by identical and workmanship is equally high in both packs. The one delta was grommets on the drain holes. I had seen some complaints that the lack grommets in the Mexican made proved shoddy workmanship. So I reached out to Hyperlite and was informed it's not a workmanship issue but rather a design change. HL found that the grommets in the original design were working themselves out so they decided to cease adding them and have had "zero" issues sans grommets. Obviously the Mexican made pack I received could be an "anomaly" of high quality, but I doubt it. Here are side by side pics for you to judge.

Age:55–64
Weight:150–175 lbs.
Height:5'8"
Yes , I recommend this product

Overall Fit Rating

Runs SmallRuns Large

Ease of Use

Difficult to useVery easy to use
Helpful?
Shanan
San Diego, CA
Rated 5.0 out of 5 stars

Buy this, not that

4 years ago

Back and forth trying backpacks (Osprey and Gregory) that were the perfect fit and don’t make your gear feel heavier than it is. Look no further, this is that pack. The waist belt and straps are so comfortable and the pack is super light. Bear canisters are a drag as far as lugging them around but you bearly notice them in here (no pun intended :) At first I bought the 2400 model which is 40L so it was a bit tight getting a canister, tent, sleeping bag and change of clothes etc so I exchanged for the 3400 model which is 50L and is just right. I like the roll down closure that makes it a smaller pack is the extra space is not needed. It’s minimalist design is helpful to not over pack too. Overall excellent pack. I’m converted to Hyperlight, so is my crew lol

Age:35–44
Weight:150–175 lbs.
Height:5'7"
Yes , I recommend this product

Overall Fit Rating

Runs SmallRuns Large

Ease of Use

Difficult to useVery easy to use
Helpful?
Chris
San Diego, CA
Rated 3.0 out of 5 stars

Hip belt not good for heavier loads

2 years ago

I recently took this pack on a 4-night excursion with the whole load weighing in at 35 pounds (bear canister required). At this weight, it was impossible to keep the hip belt from sliding down and putting all of the weight on my shoulders. Other backpacks that I've owned had stitching down the middle of the hip belts to allow them to "cup" the iliac crest. This backpack is missing that critical feature and caused me a great deal of discomfort over the 4-day ordeal. I love the low weight of this pack, the hip pockets, the external storage, and near-waterproof nature, so it will probably function very well for a 1-2 night (< 25 lbs) adventure.

Age:45–54
Weight:150–175 lbs.
Height:5'8"
Yes , I recommend this product

Overall Fit Rating

Runs SmallRuns Large

Ease of Use

Difficult to useVery easy to use
Helpful?
Sarangelo
Missouri
Rated 3.0 out of 5 stars

Returned immediately

2 years ago

I am super sad to say this was an immediate fail. After researching ultralight packs, my husband and I both measured and bought this pack. I’m a 17 inch back, so bought the medium. The back length was fine, the pack was so light and easy to use, but the straps dug in to the sides of my neck and I could tell it would chafe horribly. I ended up going to REI and trying every pack in the store and settling on an Osprey Eja, which is obviously not as light, but felt like an orthopedic backrest for me, so I think that’ll be better long term despite the extra weight. The people at the store said they’ve heard a few people have the same problem as me, so definitely recommend just going and trying packs in person versus relying on reviews. My husband kept his pack since it didn’t change his neck, and wore it for an overnight backpacking trip. He decided he didn’t like the lack of frame and how sweaty it was (this was an August in Arkansas trip- sweaty was an understatement!), so he will probably try exchanging it for an osprey after seeing how much I loved my Osprey pack. He measured as an XL and the size was great, just didn’t like it like he hoped either.

Age:35–44
Weight:100–125 lbs.
Height:5'4"
No, I do not recommend this product

Overall Fit Rating

Runs SmallRuns Large

Ease of Use

Difficult to useVery easy to use
Helpful?
Brian T
California
Rated 1.0 out of 5 stars

Poor quality

6 days ago

Stitching of shoulder strap became loose. Hyperlite customer service says that "this is unrepairable on our end as we cannot successfully repair shoulder straps for pack on our end." If you need a backpack with durability, reliable warranty and repair service, then Hyperlite clearly isn't a good choice. Go for a brand that makes better packs and offers longer-term warranty.

Age:35–44
Weight:125–150 lbs.
Height:5'10"
No, I do not recommend this product

Overall Fit Rating

Runs SmallRuns Large
Helpful?
Nick
Chicago, IL
Rated 2.0 out of 5 stars

Not worth the Hype

5 years ago

I had high hopes when I bought this pack. The “Southwest” version bills itself as being tough and great for rocky terrain. However my pack got a hole in after one day of hiking in the Sierras, and it’s incredibly disappointing. $350 Dyneema fabric...right now I’m wondering if I would have been better served with a simpler and much cheaper Osprey pack. The only thing Hyperlite’s customer service offered to do was send me a patch kit, which was additionally disappointing.

Age:25–34
Weight:175–200 lbs.
Height:6'1"
No, I do not recommend this product

Overall Fit Rating

Runs SmallRuns Large

Ease of Use

Difficult to useVery easy to use
Helpful?
iantl
San Francisco, CA
Rated 3.0 out of 5 stars

Not for skinny dudes

6 years ago

I have been looking for a good, higher volume pack for three years now. I have tested at least a dozen and most of them suffer from the same issue: lack of hip padding. I am 5'-11"/145lbs. After ~5 miles/1200' of gain with 25-30lbs in this pack, my hips were sore. I'm sure some of this would be alleviated by breaking the pack in, but it doesn't seem like that would be enough to resolve the issue. My other major concern with this pack is that the style results in a lot of contact with your back, which caused me to sweat more than other packs. I really wanted to like this pack, but I will just have to keep looking.

No, I do not recommend this product
Helpful?
Mike
Seattle, WA
Rated 1.0 out of 5 stars

Disappointing---Hyperlite Quality, REI Service

8 months ago

I enjoyed the pack, but after less than 1 year and about 30 nights on trail the stitching on the lower back came loose and a hole was begnitting to emerge. The hip belt buckle also snapped. I tried to exchange with REI, but they said this was normal wear and tear for an ultralight backpack. They did not offer repair services option. They would not honor their warranty. Maybe the quality was once good on these, but I was not impressed and REI doesn't stand behind their sales anymore. (30 plus year member) Buyer Beware!

Age:55–64
Weight:175–200 lbs.
Height:6'2"
No, I do not recommend this product
Helpful?
jaavis
Allentown pa
Rated 5.0 out of 5 stars

awesome

3 years ago

always terrified to buy something for $375 unseen. this pack was highly rated by so many youtubers and review sites. truly got my money's worth. i got large black pack. just did a winter weekend on AT with heavy 35lb load. soooo comfortable. this pack is as light as my granite gear back but actually has a real frame and holds heavy loads if needed. inspected the construction- A+. only negative - I'd like 2x larger hip pockets. i think a lightweight fanny pack could fix that problem. but truly love it. thought I'd miss all the pockets of the old pack but not at all. extremely light, durable, waterproof, comfortable. trade off is the moolah$

Age:45–54
Weight:200–225 lbs.
Height:6'1"
Yes , I recommend this product

Overall Fit Rating

Runs SmallRuns Large

Ease of Use

Difficult to useVery easy to use
Helpful?
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