Home > Products > Packs >


Alternative Views:

Price: $260.00
Special Instructions: How to measure your Torso, select the Shoulder Strap style and determine your Hipbelt Size

Quantity in Stock:7104

Product Code: CATALYST

Torso Size*:


Shoulder Strap*:
Click to view another Pack Color

Pack Color*:
Black Robic
Green (original)
Multitcam Camo* (500 Cordura)
Orange Robic
Purple Blaze
Red Robic
Woodland Camo* (500 Cordura)

Description Specifications FAQ and Videos

The Catalyst remains the tried and true workhorse of the ULA Pack line. Ready to carry loads of up to 40 pounds, haul a bear canister, or easily carry your fishing, climbing or photo gear.

Sewn with our new ULA 210 Robic fabric, the toughest stuff ounce for ounce that we've ever seen, this pack should give you years of hiking bliss, even if you are a bit tough on your gear.

This is a great pack for people who need to carry a good sized load, or want a bag that can be checked as baggage on a plane. Weighing only 48 oz, including all the extras, this pack will lighten you up, but still handle the toughest duties. (Camo Cordura will add about 2 oz to the total weight) The Catalyst is now available in 6 colors, standard green, black,and purple blaze in the ULA 210 Robic, and Woodland Camo, Marpat camo. and Multicam in 500 Cordura.

Bottom Line? An updated, tougher and lighter pack for traditional backpackers. For more information, please see the short video below.

Standard Features
  • Integrated
    • Internal Frame
    • Twin Stay Framesheet
    • Contoured Shoulder Straps
    • Front Shock Cord
    • Front Mesh Pocket
    • Dual Hipbelt Pockets
    • 210 Ripstop Adjustable Side Pockets
    • Rolltop Closure
    • Side/Top Compression Straps
    • Ice Axe/Pole Retention Loops
    • Bear Canister Capable
    • ULA 210 Robic
    • Cordura Bottom Panel
    • Hydration Sleeve (~1.4 oz)
    • Internal Stash Pocket (~1.1 oz)
    • Water Bottle Holsters (~0.8 oz)
    • Handloops (~0.8 oz)

Average Rating: 5 of 5 Total Reviews: 6 Write a review »

  0 of 0 people found the following review helpful:
Great Overall Pack May 1, 2016
Reviewer: Brian from Big Bear, Ca United States  
I have had the opportunity to use this pack a handful of times in the past few months since I purchased it. I love it. I did my homework on several packs and settled on this one. The primary reason I purchased was for thru-hiking and other types of backpacking in outdoor areas. I was also looking for a pack that would translate well to other types of urban backpacking and international travel and it has done all I have wanted and more. It is very comfortable, versatile and has a great balance of lightweight and durability that I wanted. I know I will have this pack for a long time I highly recommend the catalyst.

Was this review helpful to you?

  0 of 0 people found the following review helpful:
Catalyst trial April 13, 2016
Reviewer: Stephen Stone from Pace, FL United States  
My old pack finally gave out and I needed a new one for a 6 day trip to Yosemite in September. The pack came on Friday and on Saturday I took it on a two day 20 mile trip. I carried my gear plus my 8 year old daughters gear. It put the load on my hips better than my old one, weighs half as much and withstood some bushwacking without any tears. I am very pleased with the pack.

Was this review helpful to you?

  0 of 0 people found the following review helpful:
Great pack, great service! January 31, 2016
Reviewer: Peter from New York  
As a owner of the excellent circuit pack, the catalyst is essentially the big brother of the two and is great if your going on longer outings or winter hiking. In addition to the pack, I also ordered the new shoulder strap pockets which I highly recommend! Just write which color you prefer in the comments and they can match your ULA pack color. The pocket is perfect for a smart phone and other items you need to gain quick access to. Also I'd like to note the excellent customer service I received. I originally received a smaller hydration sleeve with my pack that didn't fit my hydration bladder. After contacting ULA they sent me a bigger, wider hydration sleeve free of charge!

Was this review helpful to you?

  1 of 1 people found the following review helpful:
light, capacious, comfortable and easy to pack September 3, 2015
Reviewer: laure manheimer from new york, NY United States  
i am 120 lbs and 5 feet 5 going for a week backpacking trip at 10-12,000 feet in the Sierra Nevada. to replace my old backpack, . i chose a Calayst, size small, S curve. . And it is all it promised to deliver and more.  It is light,simple to pack.  the main compartment is wide enough to accommodate a sleeping bag without spending 10 mns  compressing it into a tiny roll (as in the Osprey).  it is wide enough to easily insert a bear canister horizontally + all my clothing

gear to stay dry and warm + everything else i would need during the day all fit on outside pockets easily reachable without opening the main compartment. Two capacious hipbelt pockets keep all the immediate stuff within easy reach without removing backpack. On an outside loop i put my tent and my sleeping pad. it was all so easy to pack.  And it is COMFORTABLE.

Everything - excluding water in my camel back and the canister full of food- weighed 19 lbs!  it was just perfect. and the staff is VERY helpful.

Was this review helpful to you?

  1 of 1 people found the following review helpful:
Excellent Pack! July 11, 2015
Reviewer: Steve Boesen from Ankeny, IA United States  
I just got back from hiking at Philmont Scout Ranch over 12 days and 75 miles with my 15-year old son and I both wearing ULA Catalysts carrying 50-55 lbs. We averaged about 8-10 miles per day of continuous hiking in very difficult terrain ranging from 7,000-12,000 feet. These packs were phenomenal. They carried 10-15 lbs more than suggested by the manufacturer with ease. The pack rides very comfortably on your back and as someone with back problems, I had no problems using this pack. The hip belt does a fantastic job applying the weight onto your hips where it should ride and the option for the "J-curve" or "S-curve" shoulder straps allow for excellent customization. I highly recommend the purchase of the ULA-made pack cover to further waterproof the pack as it is not waterproof. They  survived a severe storm with 70 mph winds driving rain and hail into them. My son's outer mesh did not survive a chipmunk sneak attack on some food, but otherwise an excellent pack.

Was this review helpful to you?

View All Customer Reviews