Gray Six Moon Designs Swift X Ultralight Backpacking pack front
Gray Six Moon Designs Swift X Ultralight Backpacking pack corner
Gray Six Moon Designs Swift X Ultralight Backpacking pack w/ extension collar open
Gray Six Moon Designs Swift X Ultralight Backpacking pack rear showing UL Vest and hip belt
Gray Six Moon Designs Swift X Ultralight Backpacking pack rear
efficient ultralight backpack
efficient ultralight backpack
efficient ultralight backpack
Swift X Hiking Backpack
Swift X Hiking Backpack
Swift X Hiking Backpack
efficient ultralight backpack
Swift X Hiking Backpack
Swift X Hiking Backpack
Swift X Hiking Backpack
Swift X Hiking Backpack
Swift X Hiking Backpack
Swift X Hiking Backpack
Swift X Hiking Backpack
Swift X Hiking Backpack

Swift X Hiking Backpack

Regular price$270.00
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Flight Vest and Shoulder Harness

Strap Length

Weight

Recommended Size

Small Flight Shoulder Harness

15" - 38 cm
5.7 oz | 161 g
Best fits someone 5'7" or shorter and/or someone who has a torso length of 14 - 17".

Large Flight Shoulder Harness

18" - 46 cm
6.1 oz | 172 g
Best fits someone 5'8" or taller and/or someone who has a torso length of 18 - 22".

Small S-Curve* Flight Shoulder Harness

15" - 38 cm
5.7 oz | 161 g
Best fits someone 5'7" or shorter and/or someone who has a torso length of 14 - 17".

Large S-Curve* Flight Shoulder Harness

19" - 48 cm
6.3 oz | 179 g
Best fits someone 5'8" or taller and/or someone who has a torso length of 18 - 22".

Small Flight Vest Harness

19" - 48 cm
7.5 oz | 212 g
Best fits someone 5'7" or shorter and/or someone who has a torso length of 14 - 17".

Large Flight Vest Harness

22" - 56 cm
8.5 oz | 242 g
Best fits someone 5'8" or taller and/or someone who has a torso length of 18 - 22".

*The S-Curve shoulder harness is shaped to curve towards the neck and outwards around the chest to accommodate those who want more comfort in the chest area.


Flight Hip Belt Measurements

Padded Length

Weight

Recommended Size

Small Flight Hip Belt

24" - 65 cm
6.1 oz | 173 g
26" - 29"

Medium Flight Hip Belt

28" - 76 cm
6.7 oz | 188 g
30" - 35"

Large Flight Hip Belt

34" - 86 cm
7.2 oz | 204 g
36" - 50"

*If you find that you are between size measurements, we recommend going with the smaller size so that you have room for adjusting the hip belt with out zeroing out the padded section. If you are still unsure, please contact us by emailing store@sixmoondesigns.com. Please include your overall height, torso length, and weight.

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.

Overview

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.

Pack Organization

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.

Versatility

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
Torso Sizes
Dimensions
Color

Maximum Load
Minimum Load
Uses

Flight Series
16" - 22" | 38 - 56 cm

11"W X 7"D X 22"T
Heather Grey, Navy, Coyote Brown, Blue, Red
35 lb - 14 kg
15 lb - 5.5 kg or less
Lightweight Backpacking
Long Distance Backpacking

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 Designs
Published: 02/06/2020

Swift X & Swift V Overview

By: Six Moon Designs
Published: 07/29/2021

User Video

Swift X Backpack Review & Overview

By: Tuba Solo the Hiker
Published: 4/1/2020

Gear Reviews

Treeline Review: THE BEST LIGHTWEIGHT BACKPACK

Adventure Alan: Best Backpack with Vest Harness

Customer Reviews

Based on 26 reviews
69%
(18)
23%
(6)
4%
(1)
0%
(0)
4%
(1)
D
Dreamcatcher
Love it!

This pack was so comfortable. I bought with the standard type shoulder straps and they were fine. Hip pockets easy to negotiate and held quite a bit. 4 night, 3 day trip on the Three Capes trail at bottom of Tasmania (Australia). Did not have to carry tent nor sleeping mat but I know exactly where they'll fit for next trip.

B
BeanQueen
It's still early, but I love it

This is my first dip into the vest harness style and I LOVE it. Haven't been able to get on an overnight quite yet, but some weighted day hikes have been so great! Love the vest harness, the side pockets, all of it. Thanks for making a rad pack!

d
daniel lynch de
Extremely Satisfied

I upgraded from the Flight 30UL. 20 lbs is MUCH comfier with the swift x. 25-30 lbs is still quite comfortable. I haven’t yet exceeded 30…
I have carried this pack now for three months, thru-hiking. The material has held strong, the fit is great, the adjustability is great. I am VERY GLAD to have NOT purchased a seam-sealed pack, the breathability long term is really important. 2L in each side pocket easy. I added bungee chord to the back. Tenor uke in the back mesh fits perfect. Hip belt pockets hold camera/garmin well. Comfortable/durable/affordable. Thank you Six Moons-

G
Griffin Lawrence
Great for thru-hiking and alpine climbing

Such a great pack. We used these for up to 10 day stretches making a thru-hike in the wilderness around Yellowstone, and it’s shockingly comfortable with a full bear canister (or even 2!) packed inside. Lots of straps make it easy to dry wet gear or lash things to the outside, and snug it up when it’s less full.

I highly recommend buying packing pods to keep gear organized, because this pack doesn’t contain interior pockets. A dry bag is probably a good idea too if it’ll be rainy and you’re using down, but the pack is very weather resistant. We tried the vest harness and regular shoulder straps; both are great, depending on body type.

The Swift X is also a surprisingly good alpine/climbing pack. I used it working this year’s Valdez Ice Climbing Festival and it was great! Ice tools fit on it well, and it holds a rope securely on top (although you have to loop the top strap around the rope once before clipping it, or it will slide down the pack). When you remove gear to rack up, it’s easy to snug the pack against your back for smooth climbing.

It’s versatility and durability, combined with its light weight, replaced two other packs of mine. I’m looking forward to years more adventuring with it, and highly recommend it!

C
Chris Gingrich
Fits Perfectly, Nice Design

Can't wait to use it this hiking season and beyond.
Excellent pack!