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ULA Ohm 2.0 Review – Light, Quality Backpack! | Average Hiker

ULA Ohm 2.0 Backpack

ULA Ohm 2.0 – Review

The ULA Ohm 2.0 is a high-quality, ultralight backpack sold at a good price. This ultralight backpack is one of the most durable I use, and it has provided me with years of comfortable, lightweight backpacking. I have tried many other packs, but ULA makes the backpacks I keep returning to repeatedly.

My old Ohm was worn out after thousands of miles, so recently, I purchased the ULA Ohm 2.0, which I used on my New England Trail thru-hike and on sections of the Arizona Trail and Appalachian Trail. It now has about 600 miles under it, and it is time for a review.

If you are transitioning to ultralight backpacking, you should consider the ULA Ohm 2.0.


  • Comfort: Comfortable with a frame that flexes with movement.
  • Durability: Quality construction and durable materials make this one of the most formidable ultralight backpacks available.
  • Components: Details – hydration sleeve, a storage pouch, adjustable pockets, compression straps, etc., make this a versatile pack.
  • Value: Extra components, high-quality construction, and competitive pricing make this backpack a good deal.
  • Versatility – The Ohm 2.0 packs allow you to adjust for load size and frame vs. frameless.


  • Top Strap: Longer top strap for my bear canister.
  • Exterior Mesh Pocket: Less dense mesh and a larger pocket for wet gear.
  • Seam Taping – The Robic material is water-resistant, but it would be nice to have the backpack’s interior seams taped.
  • Frame: There has been feedback on the carbon frame’s durability, but this has not been an issue on my two Ohm packs.
  • Velcro Tab – A small piece of velcro on the roll-top will keep the roll tighter when rolling the fabric.

ULA Ohm 2.0 Review – Quick Specifications

  • Weight: 36 ounces (Medium)
  • Pack with add-ons: 38 ounces
  • Volume: 63L
  • Fit: Medium Backpack and Medium Belt
  • Add-Ons: Roll-top Closure, Shoulder Pouch
  • Material: 400 Robic Nylon,

Backpack Requirements

Below are my requirements when purchasing a backpack.

  • Light Weight – To combat fatigue and injury on long hikes, I try to keep my backpack’s weight around 2 pounds or less.
  • Comfort – Over long distances, I like a comfortable backpack that rides easily and holds heavy water weight if needed.
  • Durability – A durable backpack is essential. My pack has been run over, fallen down mountains, stepped on by horses, and is often used as a seat. I also like to hike off-trail.
  • Size – The backpacks I use are 55L-65L. I sleep cold, so I carry a warmer sleeping bag or quilt. I also cook, so I have fuel and a stove.
  • Water Resistant – I use a compactor bag and not a pack cover. I like water-resistant fabrics.
  • Mesh Pouch – A large mesh pocket on the rear of my backpack is a “must-have.” I use it for my tarp/tent and put wet items in it to dry.
  • Frame – I don’t need a frame pack in the summer, but I do use one for three-season hiking, where my pack weight is 20-25 pounds.
  • Water Bottle Pockets – I need water bottle pockets since I don’t use a hydration sleeve, and I want to grab the bottles easily and not worry about them falling out.

ULA Ohm 2.0 Competitors

Gossamer Gear Mariposa31 oz60L200 Robic NylonAlum.
Hyperlite Junction 340032 oz55LDyneema (DCF)None
Zpack Arc Haul23 oz62L4.85 GridstopCarb
Osprey Lumina 6031 oz60L30 Cordura NylonAlum
Granite Gear Crown2 6034 oz60 L210 NylonPoly
Mountain Laurel Designs Exodus18 oz58LDX 210 RipstopNo

Ohm 2.0 Review – First Glance

front view of ohm 2.0

The ULA Ohm 2.0 is ready to pack and go out of the box. The backpack is well-made with quality construction which is evident as you handle the backpack.

I didn’t need some of the standard components: hand loops, hydration sleeve, internal stash pocket, and water bottle holsters, and they were all easy to remove.

Ohm 2.0 Review – Fit


The ULA Ohm 2.0 frame consists of a “U” shaped carbon hoop. The hoop is inside the backpack and runs under a nylon sheath at the top of the pack, with the ends resting in two small nylon pouches at the backpack’s bottom. I like this frame system because it flexes as I hike and climb, making the backpack a comfortable fit. In addition, the hoop is relatively easy to remove if I want a frameless pack.

There have been some complaints about the carbon hoop’s durability, but I have not had any problems. The Ohm I’m testing has about 200 miles of use. My Ohm, before this, had thousands of miles – AT, CDT, AZT, etc.

The Ohm 2.0 has a 1/4-inch thick piece of open-cell foam in the back and a carbon hoop. The foam is secured by two elastic loops and is easy to remove. This small foam pad is comfortable as long as I keep the pack weight at around 25 lbs.

If you want more insulation or cushion, use a foam sleeping pad folded up or roll the pad up in the pack and place your gear inside the rolled pad. You can also deflate your inflatable pad and fold it up for additional back cushioning.

ula ohm 2.0 carbon hoop

Shoulder Straps & Hipbelt

You can get either J or S-shaped straps with the backpack. I use the S-shaped straps and find they fit my body shape, mainly if your shoulders are squared and a little more narrow.

I have used many backpacks over the years, and as a female, I have often found the straighter J-shaped straps uncomfortable. However, ULA backpacks are the most comfortable I have used. They fit across my chest well and have the right amount of padding.

The Ohm’s shoulder straps‘ load lifters are robust and allow you to adjust the pack easily. Unlike some competitors’ load lifter straps, these are full-size straps and buckles and easily handle heavier weights.

The Ohm has a well-padded hip belt with two straps on each side. Having two straps allows you to adjust your hip belt for a more precise fit, but I find them unnecessary with the padding in the Ohm hip belt. Still, if you want to dial in your hip belt, you have this capability with the Ohm. The hip belt attaches via straps and velcro and is easy to adjust.

ULA Ohm 2.0 pack straps
ULA Ohm hipbelt
Hipbelt attachment

Additional Pack Straps

The sternum strap is a full-size strap that you can slide up and down the shoulder straps as needed. Above and below the sternum strap, there are water bottle holders, both of which I have removed. A fixed plastic attachment clip is also at the top of each strap, and two fixed points are on the shoulder straps to attach additional gear or storage components.

The Ohm uses compression lines that zig-zag up the sides of the backpack and are adjustable. I use these to reduce the pack’s size and make it more secure if I have less gear. I like these compression straps better than mesh because I can use a single strap at different heights to hold things like hiking poles, umbrellas, tall water bottles, tent poles, etc.

Additional straps on the pack include hand loops, which I removed since I use trekking poles. Tension straps are also on the back of the pack (top and bottom) for your trekking poles and ice-ax.

Finally, a top strap goes up and over the top of the pack, allowing you to compress the backpack further. It would be nice if the top strap were longer to attach my bear canister, but it is still long enough to secure a large load that extends into the pack sleeve.

Sideview of Ohm 2.0 pack
Backpack top strap

ULA Ohm 2.0 Review – Storage

The storage for the ULA Ohm is 3,960 CU IN/63L and breaks down in cubic inches.

  • Main Body: 2,100
  • Front Mesh Pocket: 500
  • Left Side Pocket: 400
  • Right Side Pocket: 400
  • Extension Collar: 500
  • Left Hipbelt Pocket: 100
  • Right Hipbelt Pocket: 100

The main storage compartment of the ULA Ohm 2.0 has plenty of room, and the large extension collar allows me to add a generous amount of gear. There are two hydration ports on each side of the pack, and the hydration sleeve hangs from two clips inside the backpack. A small zippered storage pouch also clips inside the main compartment on the front.

The large exterior mesh pocket on the Ohm 2.0 is made from a dense mesh material and is tighter than similar mesh pockets I have on other backpacks. This is good if you are hiking off-trail, and there is the risk of snagging the mesh, but it provides less capacity and airflow if you want to dry your gear.

The water bottle pockets are large and adjustable, which is nice to have if you want to lock down anything in these pockets when going off-trail or scrambling.

Hip-belt pockets are also large and carry multiple snacks, a camera, a GPS unit, etc. However, keep in mind that they are not waterproof, so you will still need to be careful if carrying electronics when it is raining.

Front view and top strap
Backpack water bottle holder
ULA hydration sleeve
Ohm Storage Pouch

Ohm 2.0 Review – Materials

The ULA Ohm 2.0 is made with 400 Robic fabric, the toughest fabric I have used to date. The material is water-resistant and arguably more robust than most Dyneema fabrics. I have not used any other non-DCF backpacks that use fabric this strong.

Seems are not sealed on the Ohm as in some other ultralight backpacks, but this is not an issue since I use compactor bags in all of my packs, even my Dyneema backpacks.

ULA Ohm 2.0 400 Robic Fabric

ULA Ohm 2.0 – Add-Ons

There are two components I added to my Ohm 2.0. First, I added roll-top straps and a shoulder pouch.

As I mentioned, the roll-top allows me to compress the load, offering more flexibility for different load sizes. On the Ohm, the roll-top straps clip together or attach to the pack’s side, which I prefer. Using the Ohm as a frameless backpack also works better for compression.

The second component is the shoulder pouch, which attaches to the Ohm’s shoulder straps. The pouches come in Robic and X-Pac fabrics and are padded, which is nice if carrying sunglasses. The X-Pac fabric is waterproof, and this is one of the better shoulder pouches I’ve used. If it rains, I can keep my camera and GPS unit in the pouch. The pouch would be perfect if there were a mesh sleeve on its front for my GPS unit.

X-Pac Shoulder Pouch

Other ULA Backpacks I have Used

I have used both the Catalyst and Circuit packs. I use the Catalyst for winter backpacking on long hikes. It is a workhorse with good capacity for heavy gear.

The Circuit is an excellent long-distance backpack if I carry heavy water loads or need to carry enough food to comfortably get me through that rare 7 – 10 day stretch.

I used the Circuit on my Arizona Trail thru-hike this year, and it was the perfect pack that was still comfortable on 20 and 30-mile days.

You get a lot of capacity and durability at a very lightweight with both backpacks.

ULA Ohm 2.0 – Final Thoughts

The ULA Ohm 2.0 is a quality-made backpack built to last and handle harsher conditions than many of its ultralight competitors. I have used all of the backpacks listed in the Competitor Section of this article, and the Ohm is the pack I find the most comfortable.

ULA now also makes the Ohm in their new ultra material for a premium price. If you are looking for a tough pack that is highly weather-resistant, then the Ultra Ohm should be a consideration. When I purchase my next Ohm, it will be with this material. I don’t mind paying a premium for a pack I know will last for years.


Is the ULA Ohm 2.0 Waterproof?

The Ohm 2.0 is not waterproof but is more water-resistant than some competitors. I use a compactor bag in all my backpacks, even if the manufacturer states they are water-resistant or waterproof.

Does the ULA Ohm 2.0 Have a Frame?

Yes, the pack has a curved carbon hoop. This hoop flexes with your movement and is one of the features that make this pack so comfortable.

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