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2023 Ohm
$199.99 – $219.99
What Size Pack Do I Need? View Size Chart.
1. TORSO FIT
- Standing upright, tilt your chin to your chest.
- Locate your C7 Vertabra—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. Still not sure? Contact us.
2. TORSO CHART
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.
If you're between sizes and you are getting a FRAMED pack, we recommend you size DOWN!
If you're between sizes and you are getting a FRAMELESS pack, we recommend you size UP!
If you have questions, or your torso size doesn’t seem to make sense for your height, please contact us.
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
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 customizations so your pack is comfortable and fits well.
OR
MADE IN THE U.S.A.
FREE U.S. DELIVERY OVER $25
LIFETIME WARRANTY*
TUNE-UPS & REPAIRS*
DESCRIPTION
The ULA Ohm is a full-featured, active full-suspension, ultralight pack that offers exceptional load control, on-trail functionality, and full body compression. Combining a 1.2 oz carbon fiber/delrin active suspension hoop and near full body compression, the ULA Ohm maximizes load control, weight transfer, pack compression, and overall pack rigidity in an ultralight package.
The Ohm is the pack for the fast folks, the ones who travel light, but still take a prudent amount of gear to be safe and comfortable. This pack uses the same belt and shoulder strap system as our larger packs, so comfort and weight transfer are as good as it gets. Also, like our larger packs, the hip-belt can move up or down in its sleeve, allowing you to fine-tune the torso length. This pack comes standard with a roll-top closure.
The ULA Ohm is one tough pack that's been built to last despite its minimal weight.
AT A GLANCE
WEIGHT: 33.8 OZ | 958 GM
OHM [WEIGHT BY SIZE | OZ]
VOLUME: 3,960 CU IN | 63 L
MAX LOAD: 30 LBS | 13.6 KG
The Ohm is the pack for the fast folks, the ones who travel light, but still take a prudent amount of gear to be safe and comfortable. Jenn Wall of THE TREK recently reviewed the Ohm, calling it her current “go-to backpack.”
FEATURES
- Suspension Hoop
- Internal Pad Holster
- Contoured Padded Hipbelt
- Hipbelt Pockets
- Contoured Shoulder Straps
- ULA 400 Robic side Pockets w/ Elasticized Top
- Removable & Height Adjustable Pass-through Hipbelt
- Non-Stretch Compression Cordage
- Top Compression Straps
- Trekking Pole Loops
- Roll-top Extension Collar
- ULA 400 Robic
- Front Mesh Pocket
- Foam Pad (2.0 oz)
- Hydration Port
CAPACITY
REC. MAX LOAD: SUB 30 LB
PACK VOLUME
TOTAL VOLUME: 3,960 CI | 63 L
BREAKDOWN:
- Main Body: 2,100 CI | 34.4 L
- Front Mesh Pocket: 500 CI | 8.2 L
- Left Side Pocket: 400 CI | 6.6 L
- Right Side Pocket: 400 CI | 6.6 L
- Extension Collar: 500 CI | 8.2 L
- Left Hipbelt Pocket: 100 CI | 1.6 L
- Right Hipbelt Pocket: 100 CI |1.6 L
FAQ’S
Q: WHAT IS A SUSPENSION HOOP?
A: The suspension hoop used in the Ohm is a minimal solution in helping you transfer load between shoulder and hip. If you imagine an upside ‘U’ you get a sense of how the hoop is positioned and how it functions. The upper arch of the ‘U’ ties into the shoulder straps, while each leg of the ‘U’ ties into the hipbelt. These points of contact allow for a range of suspension flexibility while being rigid enough to support loads up to 30 lbs. In addition, because the suspension is located to the periphery of the pack body, the backpanel is ‘soft.’ This results in a pack that can handle a load and does not dictate your body’s movements — but rather responds to how you move.
Q: WHAT EXACTLY IS THE VARIABLE COMPRESSION SYSTEM (VCS)?
A: The bane of many ultralight packs is the lack of adequate compression. They work great when they are fully loaded (and therefore relatively stable in terms of load control), but suffer when the total volume is not packed. The Variable Compression System on the Ohm allows the entire pack body to be compressed no matter the overall volume of gear you have. We use non-stretch cordage as it maximizes compression and is lighter, and our 2mm nickel grommets act as cordage guides to ensure a smooth pull and stability.
Q: HOW DO I USE MY SLEEPING PAD IN CONJUNCTION WITH THE OHM? WHAT PADS WORK BEST?
A: Just about any lightweight pad (foam or inflatable) can be used for additional support and padding inside the Ohm. Three quarters and full length pads that can be folded (as opposed to rolled) work the best. If you are using an inflatable mattress, deflate, then fold it into 1/3’s or 1/5’s before inserting. We also supply a ¼ inch piece of open cell foam with the pack that works very well for those of you not carrying a sleeping pad.
Q: CAN A WATER BOTTLE FIT IN THE SIDE POCKETS?
A: Personally, we prefer to carry a smaller 20 oz bottle in the Ohm. The shorter height is more secure in the ~6″ tall pocket, and is easier to reach than a taller 32 oz bottle. In general most people can reach back and retrieve a bottle, drink, and return the bottle to the pocket without removing the pack. The top of the side pockets are angled for easier access, and are keep under tension with non-adjustable 1/2″ elastic.
Q: CAN A BEAR CANISTER FIT IN THE OHM?
A: Yes. Smaller bear cans can fit in the pack vertically, while larger cans can be strapped to the top of the pack (externally.)
To see a chart showing what bear cans fit in what ULA packs (and how), visit our blog post “Bears! Everything You Need to Know About Backpacking in Bear Country.“
TECHNICAL FABRICS
ULA 400 ROBIC
…the toughest standard fabric we’ve ever seen. Highly tear and abbrassion resistant, reinforced with a ripstop weave to increase tear strength and stitch holding capabilities. 100% Robic Nylon fabric with three-pass Teflon DWR and a three-pass PU Coating, making it highly water resistant.
WHAT PEOPLE ARE SAYING…
TREAD LIGHTLY.
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