Flight 30 Ultra Rucksack

31 Litres
Padded Back

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. Six M…

Selected Choose a Colour is
Adding to cart… The item has been added
Product Details

Jump to: Our Verdict / Features / Specifications

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.

Six Moon Designs says

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.

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

Our Verdict

Six Moon Design's Flight 30 Ultra Rucksack builds on the success of the original Flight 30 packs by stripping back the design making it simpler, lighter and more comfortable. The pack still uses highly durable 100D fabric for the main body with stretch mesh for external drop pockets and has a roll top closure with enough external loops, cords and extras to keep your kit safe. The 30L capacity is large enough for long day trips and if you can pack light enough it should be sufficient for shorter overnight trips.

The pack is designed to provide a vest like feel with adjustable torso, waist and shoulder straps allowing you to get the best fit possible. There are additional adjustment straps that are handy enough to use on the go when small changes might be needed depending on how much you are carrying. The foam stiffened back and padded shoulder straps make for a comfortable carry even when the pack is at its weight capacity.

- Reviewed by Ultralight Outdoor Gear


  • 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



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.



  • Weight of pack with Shoulder Harness (Large) and hipbelt (medium): 794g
  • Weight of pack with Vest Harness (Large) and hipbelt (medium): 848g


  • Suspension: None
  • Torso sizes: 16" - 22" | 38 - 56 cm
  • Dimensions: 11"W X 7"D X 17"T
  • Maximum load: 20 lb - 9 kg
  • Base weight: 9 lb - 4 kg


  • Body: 1450 ci - 23 L
  • Extension Collar: 250 ci - 4 L
  • Exterior Pockets: 250 ci - 4 L
  • Total Volume: 1900 ci - 31 L


  • Pack Body: 100D Nylon Robic
  • Body Contact: 3D Mesh
  • Side Panels: 100D Nylon Robic
  • Pockets: 4-Way Stretch


  • Please see the size guide section to see full size information

Help & advice:

Six Moon Designs Flight 30 Ultra Rucksack

Flight 30 Ultra Rucksack

Choose Options
Choose Options

Accurate weights of items are vital to us here at Ultralight. We want you to be confident in making decisions on which gear to buy if you’re a gram-counter like us.

Shop by weight
Customers Also Viewed
Six Moon Designs Swift V Rucksack Swift V Rucksack

Six Moon Designs

Swift V Rucksack

49 Litres
Internal Frame
No Padding

The Swift V is streamlined and efficient, just like the Swift X, but with a more budget-friendly price. The modular design means it easily configures to become your perfect pack for any adventure, be...

From: £264.99
Top Pick
OMM Halo Jacket OMM Halo Jacket


Halo Jacket

106g (based on size Medium)
UOG Top Picks:
Shell Fabric:
Point Zero H2O
106g (based on size Medium)

UOG TOP PICK - OMM's Halo Jacket - The perfect foray into lightweight Waterproofs - We've singled out OMM's Halo Jacket as one of our top recommendations because it's very lightweight, offers decent...

RRP: £124.99 | Save: £10.00
Top Pick
Rab Borealis Jacket Rab Borealis Jacket


Borealis Jacket

308g (based on size Medium)
UOG Top Picks:
Softshell Filter:
With Hood, No Insulation
308g (based on size Medium)

UOG TOP PICK - Rab Borealis Softshell Jacket - We've singled out Rab's Borealis Softshell Jacket as one of our top recommendations because it provides excellent value for money, coming in as the...

RRP: £74.99 | Save: £5.00
Top Pick
Mountain Equipment Ibex Mountain Pant Mountain Equipment Ibex Mountain Pant

Mountain Equipment

Ibex Mountain Pant

434g (based on size Medium)
UOG Top Picks:
Softshell Filter:
No Insulation
434g (based on size Medium)

UOG TOP PICK - Mountain Equipment's Ibex Mountain Pant - We've singled out Mountain Equipment's Ibex Mountain Pants as one of our top recommendations because they have an excellent blend of stretch...

RRP: £84.99 | Save: £12.00