26.2 oz - 743 g Pack

The Flight 30 Ultra is light, fast, and oh so comfortable.

The Flight 30 Ultra is the perfect pack for trail runners, mountain bikers, speed hikers, and anyone looking for a low volume. With multiple harness options and adjustable torso, this pack is sure to fit any BODY.

Size Guide
Robic Gray
Robic Gray & Green
Robic Green
VX21 Red
VX21 Blue
Shoulder Harness
Hip Belt

Customer Reviews

Based on 2 reviews Write a review

  • With the Fight 30 Ultra, we’ve stripped away all the useless frills and given you a pack with the right features to get the job done. 

    • Sits high above the waist so as not to interfere with the natural movement of your hips.

    • Vest harness keeps the pack close and secure. No more bouncing and swaying.

    • Option to add UL hip belt for even more stability.

    • Highly adjustable so you can easily dial in your perfect fit.

    • Lean design means no hang ups when negotiating cross country through narrow trails and brush.

    • Stays with you no matter how fast you change direction.


      The Flight Ultra is a 30L daypack – or multi-day pack if you’re into going super ultralight. Unlike the Flight UL, the Flight Ultra has a new large capacity bottom pocket made of woven nylon, making it even easier to stash and access items on the go efficient, small volume pack.

      There are also 3 pockets on each side of the vest, large stretch pockets on both sides on the front of the pack, daisy chain webbing, and a bungee stasher.

      Everything you need is within easy reach. With so much convenient storage, you won’t have to shed your pack until you’re ready to make camp.

      The Flight Ultra comes in two fabric options - Robic™ nylon or our new X-Pac VX21 fabric. X-Pac VX21 is a robust fabric by Dimension Polyant. It is made using 3 layers of 210 denier fabric making it not only waterproof but very abrasion-resistant. While VX21 is waterproof the packs themselves are not water tight. We recommend using a 50L Pack Liner.


      The Flight 30 Ultra is the only ultralight, frame-less pack on the market with an adjustable torso length. This allows the Flight 30 to provide unbridled comfort.

      When configured as frame-less, the highest recommended base weight is 8lbs / 3.5k and maximum weight not exceeding 25lbs / 11k.


      Vest Harness

      Six Moon Designs’ unique vest harness supports a 6-point connection between the pack and your body. There are several advantages to this system:

      1. It fully locks the pack to your body, eliminating sway or bouncing when you walk or run.

      2. Instead of all of the weight of the pack resting on your shoulders and hips, the vest harness transfers some of that weight to your core. This reduces and eliminates sores from developing on the shoulders and hips.

      3. The vest harness comes with extra pockets, providing additional quick access storage options.

      Vest Harness Health Benefits

      Because the vest harness spreads the load-bearing to the core, most hikers find it reduces back pain.

      Founder Ron Moak discovered this first hand. After a bout with cancer, Moak found that he could only handle a couple of hours of hiking before needing to stop due to severe back pain. A vest harness redistributed the weight he was carrying on his shoulders and hips to his core, allowing him to walk more upright. This additional support allowed him to hike longer distances with less pain.

      That’s why the first pack he designed incorporated the vest harness.

      If you’ve found yourself unable to backpack as easily and as long as you once did, you may want to seriously consider the vest harness. We make no claims that the vest harness is a miracle cure, but it did help Moak get back to really enjoying backpacking again. And we hope it might help you, too.

      Standard Shoulder Straps

      There are several reasons you might choose a Standard Should Strap Harness:

      1. If you’re used to carrying a traditional backpacking pack and aren’t from the running world, you will probably be comfortable with standard shoulder straps.

      2. If you are a full-chested woman or broad-chested man, you might find the vest harness constricting. In this case, the standard shoulder straps will provide a better hiking experience.

      3. The standard shoulder straps are easier to slip out of if you want to take an extended break without the weight of your pack.

      • Adjustable Torso Length because one size does not fit all
      • Three Shoulder strap Style options - Shoulder Harness, S-Curve or Vest Harness
      • Two Sizes in Each Strap Style
      • Deep Side Pockets
      • Large Capacity Bottom Stash Pocket made of woven nylon.
      • Shock Cord Compression easily keeps everything stable.
      • Large Shoulder Strap Pockets to stash snacks and phones and everything else.
      • Removable Hip Belt in Multiple Sizes
      • Minimal Contact Back Panel
      • Top Loading with Dry Bag Closure
      • Dual Hydration Ports
      • Internal Zippered Stash Pocket to keep your wallet and keys safe and easy to find.
      • Daisy Chain
      • Elastic Lashing Cord to strap things down quick and easy.
      • Two layers of material in key point to strengthen the pack and prevent holes.
      • Multiple Point Compression System
      • Ice Axe / Trekking Pole Loop
      • Suspension
        Torso Sizes

        Maximum Load
        Base Weight
        16" - 22" | 38 - 56 cm
        11"W X 7"D X 17"T
        Gray, Green, Gray/Green, Red, Blue

        20 lb - 9 kg
        9 lb - 4 kg
        Ultra Running
        Fastest Known Times (FKT)
        Adventure Racing
        Day Hikes
      • Pack Body

        Body Contact
        Side Panels
        100D Nylon Robictm
        or X-Pac VX21
        3D Mesh
        100D Nylon robictm
        4-Way Stretch
      • Body
        Extension Collar
        Exterior Pockets

        Total Volume
        1450 ci  23 L
        250 ci  4 L
        200 ci  4 L

        1900 ci 31 L
      • Robic Body
        X-Pac VX21 Body
        Shoulder Harness
        Hip Belt (Optional)

        Total Weight:
        Robic Weight 
        VX21 Weight 
        14 oz - 400 g
        19.8 oz - 555 g
        5.7 oz - 161 g
        6.5 oz - 188 g

        26.2 oz - 743 g
        32 oz - 904 g

      Section Hiker: Six Moon Designs Flight 30 Ultra Running Pack Review by Andy Winchester

    Customer Reviews
    4.7 Based on 6 Reviews
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    Filter Reviews:
      A Six Moon Designs Customer
      Arie F.
      United States United States

      You are awesome guys. It's only when I got the bag today in Israel after it had traveled from the US that I see what a quality product it is. Can't wait to take it on the trails for a Fastpacking experience. You service and responsiveness was fantastic. Thank you.

      A Six Moon Designs Customer
      Eddie K.
      United States United States
      Flight 30 ul

      I love this backpack. The outside pockets are super handy. The chest harness and the waist belt are amazing. The fit is great. The non-elastic p-cord securing strings are genius. Wish : * the front pockets on the waist belt and the chest straps could fit a 500ml soft bottle like this one : https://www.rei.com/rei-garage/product/175377/ultimate-direction-body-bottle-500-water-bottle-17-fl-oz?CAWELAID=120217890009763728&CAGPSPN=pla&CAAGID=16301334160&CATCI=pla-444879266040&cm_mmc=PLA_Google_Outlet&product_id=1753770001&ad_type=pla&channel=online&partition_id=444879266040&target_id=pla-444879266040&brand_flag=&adgroup_id=16301334160&campaign_id=184376080&location_physical=9029178&cid=55518665800&network=g&network_type=search&device_type=c&merchant_id=1209243&gclid=CjwKCAjw0_T4BRBlEiwAwoEiAXqN4XQozyGiHxQfIW2uepI_vtUO-B-hew7fFPzNyscxXtuSO4xKEhoCtUUQAvD_BwE&gclsrc=aw.ds * there could be another exterior pocket on the back, in between the ones on the sides.

      A Six Moon Designs Customer
      Ian F.
      United States United States
      Great fastpacking pack with one minor (fixable) flaw

      I'm just getting into fastpacking and ordered the Flight 30 UL along with similar offerings from Salomon, Montane, and Ultimate Direction. I ended up going with the Six Moon Designs because it felt like it offered just a little more capacity (though other bags were advertised as more liters) and with the vest and hip belt, it was definitely the most stable and bounced the least when fully loaded. I just took the pack out on a 4 day trip around the collegiate peaks wilderness and it performed excellently. The main compartment easily fit all the essentials along with a few days worth of food. The stretchy side pockets felt like a Mary Poppins bag, I could continually stuff things in them and it seemed like they could always fit more. And then I used the elastic shock cord and top buckle strap to secure things I took on and off through out the day like my rain jacket. The hip belt pockets were a great size to keep a full day's worth of snacks and an iPhone 10. I got this pack with the running vest straps and they were awesome, I kept my gps, bandana, lip balm, and other small ditties in there. But, the one issue I had was that the pockets meant to hold bottles weren't deep enough for the 500ml Salomon soft flasks I have. They stuck out about half way. I was able to remedy this though because the bottle pockets are actually sewn on top of the vest's zipper pockets. What I ended up doing was cutting away the fabric of the zipper pocket so the bottle got inserted into the bottle pocket but then ended up going deeper into the zipper pocket. After that, the bottle actually fit perfectly and you can still store stuff along side the bottle in the zip pocket. I think SMD should consider a slight redesign to make those pockets fit a 500 or 600 ml flask by default. Other than that, I love this pack and am planning to put a lot of miles on it. Thanks SMD!

      Six Moon Designs Flight 30 UL ReviewSix Moon Designs Flight 30 UL ReviewSix Moon Designs Flight 30 UL Review
      Flight 30

      The Six Moon Designs Flight 30 pack is one of the newest and most exciting backpack on the market for SUL hikers, runners, fastpackers, FKT'ers, peak baggers, and those looking for a small volume backpack that can handle 10 pounds or so of gear and have very little, if zero, bouncing while moving fast down the trail. In late 2013 I found the joys of moving faster down the trail. This lead me into the world of fastpacking and that sort of changed my life when it comes to being out on the trail. As I shared with Six Moon Designs when they published a customer profile on me, The Flight 30 is one of the first packs on the market to cater to this void. It has proven to allow me to move fast, even running, with enough gear and food and water for three or four days on the trail. This really is the niche market that the Flight 30 exists within. There are very few packs on the market that hug the body when moving with three or four days of food, have little to no bounce, and that is amazingly comfortable. The Flight 30 is at the top of the list! View my full review of this pack at hikelighter.com Thanks,John Abela

      Brett N.
      United States United States
      So close to perfect.

      I'm 6 ft 1 in, 230 lb. I live in the Northeast. My base weight is round 12 lb because I like to bring bear spray, two pillows, and a sleeping bag liner. I used this pack for a few day hikes and some short overnights in the summer. I love how light it is, and how it hugs my back. There's no movement whatsoever. I love the fact it has no frame because I sweat a lot and I think I will easily be able to wash this. I'm not a fan of roll tops, I prefer a lid with a pocket for organization, but that is a small sacrifice. I have used this pack with a vest as well as the new flight shoulder straps. I have used a hip belt also, but I have not found that to be necessary. The few qualms I have are due to my own physical limitations I believe. I have a shoulder injury which prevents me from reaching the large pockets for water or other items. This is where the vest comes in handy, or the hip belt pockets. Although I go as light as possible, I would also really like the ability to attach a closed foam pad to the bottom of the pack. That would help stabilize it when loading / unloading. Right now I use the bungee cord on the back, but it sticks out so much. One thing just occurred to me - would it be possible to have like a waterproof sheet between a person and the backpack? That way you could wash the sheet and the backpack would be protected. There's not a lot of ventilation on this pack so the fact this idea would make my back sweat doesn't matter much.