Gear Review: Hyperlite Mountain Gear Windrider 3400

You’ll be hard pressed to trek too far on the Appalachian Trail or Pacific Crest Trail without running into someone using a Hyperlite Mountain Gear Windrider 3400. These 100 percent Dyneema packs have exploded in popularity among the long-distance backpacking community over the past few years. I had the opportunity to give this pack a test spin on my recent PCT section hike.  The following are my takeaway thoughts.

Hyperlite Mountain Gear Windrider 3400 Review

Basic Specs

Weight: 28.8 ounces*
MSRP: $345
Capacity: 3,400 cubic inches (55 liters)
Max load: 40 pounds
Material: Dyneema Composite Fabric

*Note: Pack weights vary based on torso size. I wear a small.


3400 windrider

Hyperlite Mountain Gear’s Windrider 3400 is an ultralight pack designed for long-distance treks requiring multiple days between resupplies, appropriate for hikers carrying a maximum of 40 pounds. Made out of 100 percent Cuben Fiber (now Dyneema Composite Fabrics), this pack is less than two pounds of durable, waterproof goodness.

Circumstance of Review

Glamour shots at Charlton Lake.

I carried the Windrider 3400 for about 210 hot, dry miles of the PCT in Southern Oregon. Having already hiked over half of the PCT with a different pack, I went into this section with a very well-developed sense of how I roll on this trail: my hydration system, where everything lives in my pack, how fast I can hike, how many miles I can pull daily, etc. So what I was paying the most attention to was my efficiency by way of the pack’s efficiency. Consistent with my previous experience on the PCT, I hiked about 30 miles a day and, on average, I estimate I was carrying ten to 15 pounds (depending on water,  amount of food, and proximity to my next resupply).

Key Features

This pack has a number of small details and features that I’d love to take time to highlight, but I’m only focusing on the big ones here.

Hip belt: Many ultralight packs shave ounces by making the hip belt less substantial. In my opinion, this is a huge mistake. The majority of your pack weight should be resting on your hips, and the belt will heavily contribute to the ease with which you carry that weight. HMG definitely didn’t cut this corner with the Windrider and I was very happy with the amount of support in the belt. The webbing and buckle are both substantive, with minimal but sufficient padding. Same for the lumbar cushion.

Hyperlite Mountain Gear Windrider 3400 review

The middle of the belt should sit directly over the iliac crest. If you don’t know where that is, put your finger on the point of your hip bone that juts out in the front and run your finger along the bone up toward your ribs until the bone reaches a peak. That’s your iliac crest.

My only complaint was that I’d be in trouble if I lost much weight. Although I could theoretically tighten the belt enough even if I lost several inches, it’s not good to have the hip belt coming around the front of your hips much further than it is in the photo here. I think an extra small option would be a good addition for HMG’s future iterations of this pack.

Hip belt pockets: These pockets are to die for. They are seriously huge–and this is a key update from the older version of this pack. Sometimes even a little too huge, because it was hard to quickly grab things if the pockets weren’t full enough—everything would get jumbled around. But would I reduce the size? No. I can think of several circumstances in which I’d want them exactly as they are. I also appreciate how sturdy the pocket zippers are. Very little risk of snagging the fabric or of what I call “limited lifetime” hardware. Another ounce-cutting corner that HMG did not cut, of which I wholeheartedly approve.

Hyperlite Mountain Gear Windrider 3400 review

Compression system: I liked the compression system on the Hyperlite Mountain Gear Windrider 3400. The side compression straps for horizontal compression allowed me to keep the pack weight closer to my body, and the top Y-strap compression strikes me as an especially smart and efficient way to reduce the amount of webbing on the pack. I wasn’t a huge fan of the Velcro sealing the roll-top, but it wasn’t an actual drawback.

Suspension system: This aspect of the pack took the most adjusting and getting used to. The absence of load lifters threw me off at first (if you aren’t familiar with the anatomy of a pack, check out this link), but I was able to compensate by changing the width of my sternum strap. The load lifters weren’t a very big deal due to my incredibly light pack weight, but had I been carrying a heavier load I’m not sure how much I would’ve been digging it. The padding on the shoulder harness was sufficient, but the width of the straps where they meet the pack was problematic. I’m a fairly small person, and the width of the strap there was over half the width of my shoulder, leaving it to rub against the slope between my shoulder and neck. Much like the hip belt, I hope HMG will consider an extra-small or women’s-specific, more slender option for the shoulder harness as it continues to refine the Hyperlite Mountain Gear Windrider 3400.

Hyperlite Mountain Gear Windrider 3400 review

Good perspective on the suspension, hip belt pockets, lumbar padding, and outside mesh pockets.

Outside mesh pockets: I guess the Hyperlite Mountain Gear Windrider 3400 is just all about the pockets, because these pockets are the jam. The mesh is divided into three spacious compartments, with one on each side and one in the center. The side mesh wrapped around far enough that I could grab water bottles from either side without much trouble and without having to stop, making possible what turned out to be a more efficient hydration system than what I previously used on the PCT. And the center mesh was perfect for 1) drying things and 2) miscellaneous stuff that I needed to access often. The mesh is also super substantial–yet another promise for great durability over time.

Hyperlite Mountain Gear Windrider 3400


OK, OK, nifty features are great and all, but the most important question: Was it comfortable? Yes–once I figured out how to make the suspension system work for my body. The shoulder harness rubbing on my neck was a drawback, but it was easy enough to fashion a solution, and otherwise, the pack molded to my body nicely and I moved incredibly easily with it on.


  • Ultralight
  • Handmade in the USA (this is a big one for me)—check out HMG’s bio here
  • Waterproof
  • Gigantic hip belt pockets
  • Gigantic mesh pockets


  • Shoulder harness too wide
  • Not really suitable for anything but ultralight
  • No short/X-small sizing option


Hyperlite Mountain Gear Windrider 3400

Making kind of a weird face because I hate selfies, but I’m really happy in this moment. Like, really, really, really.

Overall, I am a big fan of this pack. It’s a smart, streamlined design, thoughtfully tailored to the minimalist backpacker. HMG cut weight in all the right places, picking quality over ounces where it matters most. My trip was cut short due to a tibial stress fracture, so I am stoked to keep getting the Hyperlite Mountain Gear Windrider 3400 dialed in once I’m back on my feet. Stay tuned for review revisions and updates.

Final Overall Rating: 9/10

Hyperlite Mountain Gear Windrider 3400

More glamour shots. What can I say; it’s a good-looking pack.

Shop the HMG Windrider 3400 Here

Disclosure: This product was donated for purpose of review. 

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Comments 5

  • Owen Weinman : Nov 20th

    Hey Anne,

    Sweet review man, some great and thorough information here. Thank you for it. I am sorry to hear about your fracture, that blows but even unfortunate events have their purpose. I am almost ready to pull the trigger on the Windrider 3400 for my plan to hike the PCT next year, but I have some questions. First is about the materials of the external pockets between the Southwest/Windrider. I have read reviews of other people getting holes in their mesh pockets. Has this happened to you? Have you seen this on others? If so, was it on the big main back pocket or the side water bottle pockets? I ask because I am thinking about costom making my pack to have the side water bottle pockets as Southwest Dyneema material and the main back pocket as Windrider mesh. I woul like to have mesh as the back pocket so I can dry out gear while I hike but Dyneema for the side pockets that are most accessable to passing tree branches, bushes and rocks that would likely tear em apart if they were mesh. Do you think this plan would work? Or should I just go full Southwest for ultimate durability? Why did you choose the Windrider over the SW?
    My other question is about losing weight on a thru hike. Do you think this could prove to be an issue with the fixed hip belt? Should I choose a size smaller than I actually am just to anticipate this potentiality?



    • Anne K. Baker : Nov 24th

      Hey Owen! So glad you enjoyed the review. Great questions!

      I’m surprised to hear that folks are getting rips in that mesh–it’s pretty tough material, as mesh goes. I’ve never had a rip in any of my Windrider pockets, nor do I know of others who have had that problem. If it were me, I wouldn’t be worried about that at all–especially because on the PCT you’re pretty infrequently traveling trail that is gonna beat your pack up like you’re talkin’ about. If you plan to do some serious bushwhacking with this pack in the future, though, this concern may be more relevant. You’re smart to plan on drying out gear while hiking; however, I can offer that at least on the PCT, that’s a pretty fast process that can often be accomplished during lunch and snack breaks if you just find a nice sunny rock. All that said– it sounds like you’ve already got a plan in mind, and there’s no considerable weight difference between the dyneema and the mesh, so I say go for it and learn from doing!

      Your weight loss question is a tricky one, and depends on a number of factors. In general, I do not recommend sizing down. If you do that, the hipbelt will be too small when you start–STAYING too small for who knows how long (at LEAST 700 miles, I’d guess; probably more like 1000)–and that’s bad news. You need to be able to carry your pack weight appropriately with your hips and legs, and you can’t do that when it doesn’t fit correctly. This consideration changes in level of importance depending on how heavy your pack is. Obviously, the heavier it is, the more important that it sits on your hips the correct way. I would also consider the rest of your life after the PCT. I assume (hope?) that you plan on continuing to hike long after the PCT is over, and your thru-hiker bod will fade (sad, I know); so make a purchase that’s sustainable for the long haul. The amount this will matter also depends hugely on how big you are now and what your metabolism is like in normal every day life. If you’re already pretty fit/lean, I definitely would not size down. If you’ve got a lot to lose, I also wouldn’t size down, but I would be prepared to fasten some additional padding to your hipbelt. I hiked with a guy in 2017 who did that and it was just fine.

      Whew! That’s a lot. Hope this is helpful–let me know if I can clarify anything. Excited for you to hop on the HMG bandwagon–they are terrific packs and a terrific company. Good luck planning!


  • Mike Jones : Jan 2nd

    I tried both the 3400 and 4400. If anyone is between both you can check out my comparison here:

  • Jeff : Dec 22nd

    Hi Anne,
    Helpful review! I recently got an HMG Junction 3400 and took it out for a short winter hike today. You mentioned “it was easy enough to fashion a solution” for the “shoulder harness rubbing on my neck.” Curious as to how you addressed that. Thanks.

    • Leslie : Mar 10th

      I’d also really love to hear about a fix you may have fashioned for the neck rubbing. That is the only thing holding me back and I was super bummed when I felt it while trying a pack on. I tried on 2 sizes too.


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