ULA Equipment 30L Patchless Robic 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.
The ULA Robic 30L Dragonfly is a pack that will take you flying through your travels! Designed with a quick weekend getaway in mind, this front-loading bag is quick to pack, meaning you’ll be out the door as fast as a Dragonfly.
Being a travel-focused bag doesn’t just require ease in flight; we also designed it to be versatile enough to take hiking or tromping around the city. I recently carried mine to the summit of Mt Kilimanjaro and then 10 ten days of jungle trekking.
The Robic 30L Dragonfly is a full-featured pack with several organizational pockets for you to stay sane in this hectic world. A quick-access pocket on the top is great for those things you want safe and accessible. Two large mesh pockets on the side can acquire 64 oz bottles with ease. And the front panel has an split-internal (2 compartments) and external mesh pocket for more organization. The 15 inch laptop sleeve can also be used for a hydration bladder.
Features
- Carry-On Compliant (Please check your Airline )
- 15″ Laptop Sleeve
- UltraStretch™ Front + Side Pockets
- Internal Split Mesh Organizer Pocket
- Internal Compression Straps
- Quick Access Top Pocket
- Padded Back-panel
- Silent Zipper Pulls
- #8 YKK Zipper on Panel Load Compartment
- #5 YKK Zipper on Laptop Slot, Top Pocket, and Interior Zipper
- Removable + Adjustable Sternum Strap
- ULA Signature S-Straps
- 1″ Fixed Hipbelt Attachment Loops (Hipbelt Sold Separately.)
- Padded Haul Loop
- ULA Size Guide
Specifications
Weight | 745g |
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.