ULA Equipment ULTRA 30L Patchless Dragonfly
S Straps vs J Straps? Torso size? Follow this helpful guide to get the best fit.
1. TORSO FIT
- Standing upright, tilt your chin to your chest.
- Locate your C7 Vertebra - the large lump at the base of your neck.
- With flexible tape, measure down the length and natural curvature of your spine to your iliac crest/the top of your hipbone.
- This measurement in inches is your torso length.
TIP: If you're between 2 sizes, order the smaller size.
2. TORSO CHART
Pack Size | Torso Size | Hiker's Height |
---|---|---|
Small | 15-18in | Under 5'6" |
Medium | 18-21in | 5'6"-6'0" |
Large | 21-24in | 5'10"-6'4" |
X-Large | +24in | Over 6'4" |
Kid's | 12-18in | Kid [Under 5'4"] |
We've found most people in these height ranges fall into these torso/pack sizes. That being said, it is always best to measure your torso using the guide above.
3. HIPBELT FIT

Use the following method to determine your hipbelt inches, then head to Step 4 to see the hipbelt size you need.
MEN
Pant Waist Size + 2".
WOMEN
CURVY HIPS: Smallest part of your waist + 5".
STRAIGHT HIPS: Smallest part of your waist + 3".
KIDS
Smallest Part of waist + 2".
4. HIPBELT SIZE CHART
Hipbelt Size | Measurements |
---|---|
XX-Small | 18-26in |
X-Small | 26-30in |
Small | 30-34in |
Medium | 34-38in |
Large | 38-42in |
X-Large | 42-47in |
XX-Large | +47in |
Find the hipbelt measurement you calculated in Step 3 on the chart. That will be your hipbelt size.
TIP: If you are on the outer edge of a size, order the larger size. [ Ex: If you are 38", you will notice 38" is the last number of the Medium Hipbelt and the first number of the Large Hipbelt. You would want to order a Large.]
5. SHOULDER STRAPS

The downward slope of your shoulder profile usually determines strap preference. You can assess your shoulder slope profile by looking in a mirror or having a friend look at the angle of your shoulder from the base of your neck to your shoulder point.
If there is relatively little or no downward slope, you have what is referred to as flat or squared shoulders.
If there is a noticeable downward slope, you have what is referred to as standard or sloping shoulders.
J STRAPS
J-straps are the traditional straight straps. They are best suited for people with flat or square shoulders, as their flat shape provides better surface contact and less rub.
S STRAPS
S-straps contour body curves. They are best suited for people with standard or sloping shoulders, as their contoured shape better hugs your shoulder slope.
TIP: If you have a short torso but a larger upper body, you may need a slightly longer strap. If you are very large in the upper body, you might need XL shoulder straps. Contact us, and we would be happy to make these customisations so your pack is comfortable and fits well.
ULA Equipment's award-winning Dragonfly just got ultra-strong, so you can kick your weekend adventures into high gear. Constructed of Ultra fabric and UltraStretch™ mesh, we've created a travel/day pack that can handle whatever life (or an over-zealous baggage handler) can throw at it.
Ultra™ fabrics are 15x stronger than steel by weight, twice as abrasion-resistant as same-weight nylons, and waterproof to 200 psi, meaning you don't have to worry about your cargo.
Front-loading, the Ultra 30L Dragonfly is quick to pack, so you can be out the door in a flash. Several organizational pockets help keep you sane in this hectic world. The quick-access top pocket with built in lanyard is perfect for things you want to be safe yet accessible, like those keys. The front panel has 2 internal open-stretch mesh compartments (split) and an external UltraStretch™ mesh pocket for more organization. Two large UltraStretch™ mesh side pockets can fit 64 oz. bottles with ease. UltraStretch™ is a four-way stretch mesh supercharged with ULTRA to be extra tear-resistant and durable.
The 15-inch laptop sleeve doubles as a hydration bladder. Two internal compression straps cinch your load so you can get all your gear in hassle-free. Need more room? Put it under the front bungee on the outside.
Signature s-strap shoulder straps and a sternum strap provide all-day comfort. Need more support? We've tucked 1" low-profile fixed attachment loops behind the lower bottom shoulder strap anchor points to allow for the attachment of our removable Dragonfly + Packrat Hipbelt. (Please note, the Dragonfly + Packrat Hipbelt is only compatible with newer Dragonfly models that feature the 1" low-profile attachment loops. To see if your pack is compatible, check for these loops behind the bottom shoulder-strap anchor points.) A NEW! padded haul loop provides a comfortable grip even when you reach max loads. YKK AquaGaurd water-resistant zippers throughout. The Ultra 30L Patchless Dragonfly has no ULA logo patch.
Features
- ULTRA™ Fabric
- UltraStretch™ Front + Side Pockets
- Carry-On Compliant (Please check your Airline)
- 15″ Laptop Sleeve
- Internal Split Open-Mesh Organizer Pocket
- 2 Internal Compression Straps
- Quick Access Top Pocket w/ Lanyard
- Padded Haul Loop
- Padded Back-panel
- ULA Signature S-Straps
- Silent Zipper Pulls
- #8 YKK AquaGuard Water-resistant Main Zipper
- #5 YKK AquaGuard Water-resistant Zippers on Laptop Slot and Top Pocket Access Pocket
- Removable + Adjustable Sternum Strap
- 1″ Fixed Hipbelt Attachment Loops (Hipbelt Sold Separately.)
- ULA Size Guide
Specifications
Weight | 777g |
Volume | 30L |
Max Load | 11kg |
Breakdown | Main body: 21.8L Zippered front mesh pocket: 3L Left side mesh pocket: 2.6L Right side mesh pocket: 2.6L |
Dimensions | Main body: 47 x 28 x 18cm 2 internal mesh pockets: 19 x 14cm Quick access top pocket: 28 x 15 x 7.5cm |
The standard local delivery time from our store in Melbourne for orders placed before noon is 2–7 business days via Australia Post standard delivery. Express Post is also available. Please see our Shipping page for more details. International Orders are subject to flight availability.
If you'd like to know availability and delivery times for a specific item please contact us and we will get back to you asap.