36oz - 1021g Ultralight Backpack
Streamlined and efficient, the Swift X is designed to go where you go.
The Swift X is a modern take on a time-tested design. Over 10 years ago, we designed the Swift. Ten years later, we’ve added some modern upgrades to create the Swift X. Constructed from lightweight, durable fabric, the Swift X joins our premium Zero-G line. This ultralight backpack’s simple, modular design means it easily configures to become your perfect pack for any adventure, be it a quick overnight trip or a calendar year triple crown.
The Swift is now offered in a VX21 and LS21 fabric weight. Both fabrics added only 1 oz of weight to the pack for 210 Denier Material Weight. When compared to the 70 Denier Material Weight of the VX07 and LS07, this added durability for the 1 oz weight penalty seemed like a no-brainer to us. For those counting grams, the VX07 and LS07 are still extremely durable, but those looking for an even burlier ultralight pack should consider the VX21.
The Swift X is designed to be lightweight, durable, and comfortable. Because we want the pack to be comfortable, the pack weight will vary depending on the configuration. Configured as a Frame-less pack with Pack Bag and Shoulder Straps, The Swift X comes in at 26 oz. / 737 g.
In the Standard Configuration with added Stay and Hip Belt, The Swift X weighs 36 oz. / 1021 g.
With the Vest Harness, you get additional stability in your load carrying and it brings the weight up to 37 oz. / 1049 g.


The Swift X provides ultimate functionality in a simple design. This ultralight backpack has a single roll-top main compartment that holds 38L with an additional 6L extension collar. A Y-strap secures the load top and provides a convenient and easy attachment point for a bear barrel.
Intentionally designed, the Swift X gives you easy access to snacks, your phone, maps, and all those little things you need to keep close at hand. You’ll find you won’t even have the need to take the pack off until you hit camp at the end of the day.
The side water bottle pockets are made from 4-way stretch woven mesh. They are designed so that you can grab items easily while on the go.
Inside the main compartment, there is a zippered pocket for your wallet to keep it safe and secure and easy to access at the first sign of a burger joint.
The Swift X comes in a variety of configurations, so you can get the perfect fit for you and your needs. You can choose from a standard shoulder yoke or flight vest yoke. Each come in 2 sizes.
The Swift X also comes with a removable hip belt available in 3 sizes.
Between the adjustable torso length, removable hip belt, harness options, and removable Delrin Hoop Stay, The Swift X can be dialed in to your exact preferences. Each configuration ultimately changes the weight of the pack from 26 oz. at its lightest to 37 oz. at its heaviest.
While the material used in the Swift X is waterproof the, packs themselves are not water tight. We recommend using a 50L Pack Liner.

Suspension
Frame Configuration
The Swift X features a Delrin Hoop Stay Frame.
Delrin Hoop Stay Frame Features:
Transfers load to the hip belt
Makes carrying heavy loads more comfortable
Reduces pack snag
Increases load carrying capacity by ~10 lbs
Recommended Base Weight: 12 lbs / 5.5 kg
Maximum Weight: 35 lbs / 15.8 kg
Frameless Configuration
The Swift X has the option to be configured without the use of the Delrin Hoop Stay Frame.
Frameless Features:
Decreases pack weight by 3 oz / 85 g
Great for fastpacking or super ultralight backpacking
Recommended Base Weight: 8 lbs / 3.5 kg
Maximum Weight: 25 lbs / 11kg
Harness Options

Flight Shoulder Harness
✓ Traditional backpack shoulder straps
✓ Two 4-Way Stretch Pockets that hold 500ml soft bottles
✓ Sliding sternum strap
✓ Covers less torso area
✓ Weighs ~2 oz less than vest harness

Flight Vest Harness
✓ Six points of suspension between the pack and user
✓ Eliminates sway or bounce when walking or running
✓ Transfers some of the load to your core
✓ Helps to eliminate sores on your shoulders and hips
✓ Helps to reduce back pain after long days on trail
✓ Provides extra storage pockets and quick-access options

Flight S-Curve Harness
✓ Designed to accommodate people with narrow shoulders that have a larger chest area
✓ Two 4-Way Stretch Pockets that hold 500ml soft bottles
✓ Sliding sternum strap
✓ Avoids covering chest for more comfort
✓ Weighs ~2oz less than Flight Vest Harness
Features
• Adjustable Torso Length
• Three Shoulder strap Style options (Shoulder Harness, S-Curve or Vest Harness)
• Three Exterior Woven Pockets so you only have to unload your pack when its time to set up camp.
• Rear Pocket
• Two Side Pockets
• Breathable and Durable 4-way Stretch Material
• Large Shoulder Strap Pockets to keep things close at hand
• Removable Hip Belt
• Minimal Contact Back Panel
• Top Loading with Dry Bag Closure
• Internal Zippered Stash Pocket for your wallet and other small necessities
• Multiple Point Cord Compression System to keep your load stabilized no matter the size
• Single Ice Axe or Trekking pole attachment point
• Two layers of material in key point to strengthen the pack and prevent holes.
• Dual Hydration Ports
• Removable Hydration Bladder
• Sliding Sternum Straps on Vest and Shoulder Harness
• Delrin Hoop Stay for added support on those heavy load days.
Specifications
General
Suspension |
Flight Series 16" - 22" | 38 - 56 cm 11"W X 7"D X 22"T |
Material
Pack Body Body Contact Pockets |
LiteSkin LS07, LS21 or X-Pac VX07, VX21 3D Mesh 4-Way Stretch |
Volume
Body Extension Collar Exterior Pockets Total Volume |
2319 ci - 38 L 366 - 6 L 305 - 5 L 2990 ci - 49 L |
Weight
LS07 & VX07 Body VX21 & VX21 Body Delrin Stay Shoulder Strap Hip Belt Total Weight: LS07 & VX07 Weight LS21 &VX21 Weight |
19.7 oz - 558 g 20.6 oz - 584 g 3 oz - 85 g 5.7 oz - 162 g 6.5 oz - 184 g 34.8 oz - 989 g 35.8 oz - 1015 g |
Video
Shoulder Straps or Vest Harness?By: Six Moon DesignsPublished: 02/06/2020 |
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Swift X & Swift V OverviewBy: Six Moon DesignsPublished: 07/29/2021 |
User Video
Swift X Backpack Review & OverviewBy: Tuba Solo the HikerPublished: 4/1/2020 |