About AttackPAK

Where it all started...

We understand how we got here and the way out is clear.


P. Alex Klein, founder of AttackPAK, spent many years volunteering with the Alpine Rescue Team in Colorado. Klein also served on the Berthoud Pass (Colorado) Ski Patrol for 5 years. At an elevation of 11,306’, on the Continental Divide, Berthoud Pass is an extreme skiing environment – testing the skills and equipment of every Patroller.


The inspiration for AttackPAK, a patented contoured frame along with a modular component concept, was starting to brew during this time.


Then, one day dirt bike riding, he had an epiphany and applied a mountaineering solution to a military problem. As his chest protector got stuck in on his kidney belt, it took the weight of his hydration pack off his shoulders. And that's when he developed the idea of an Integrated Load Carriage System (ILCS) for the military and tactical applications.

Light Is Fast. Fast Is Flexible.

Rescuing lost and injured people in the Rocky Mountains took his operations team into rugged territory where weathers conditions consistently change on a dime. In this dangerous mix of topography, injured/distressed evacuees and severe weather, each minute is critical.


Additionally every rescue mission had unique equipment requirements. Klein developed the modular pack-frame-belt concept in direct response to fill the requisite versatility requirement.

Extreme Conditions Experience + Hands-On Product Knowledge = Great Packs

Klein made his first backpack in 1983. He was scheduled to go on a hike with the Adirondack Mountain Club, and had no pack for the trip and no money to buy one. The only option was to make one. Using fabrics and buckles from the REI CoOp, Klein matched his desire to get into the backcountry with his creative ability. The resulting pack was destined to change Klein’s life.


Later, as a teenager drawn to backpack design and construction, Klein took a job in the repairs department for Eastern Mountain Sports. Repairing many failed packs – some from the largest, most reputable manufacturers – he gained valuable hands-on experience that taught him why equipment fails and how to prevent failure. Seemingly endless hours of sewing repairs on broken equipment inspired him to build a better pack.

Decades of Dependability

Since the 1980s, AttackPAK has been building backpacks from super-durable materials to meet the demands of rescue workers, hunters, skiers, hikers and most recently military and tactical. The AttackPAK product strategy, in place from that first stitch, has always been to know what will fail, reinforce it so that it does not, and plan contingency systems. The crew at AttackPAK constantly puts its equipment to the test, using new gear all over the Rocky Mountains to ensure each product is up to our standards. With every design we make comes a dedication to endurance, versatility and functionality.

The Bomber Guarantee

Our gear is engineered for generational durability. Built to serve you and your descendants. Should material or workmanship defects occur, we'll repair it at no charge. When you wear it out through hard use, we'll repair it at a fair price. This equipment is designed as a working tool, not a display piece. Put it to work in the field where it belongs.

2026 Digital Catalog

High Performance

Human Load Carriage

What Our Valued Customers Say

“I can really tell the difference. The pressure is off your chest. It doesn’t even feel like I have a plate carrier on. No restrictions in breathing. I can easily move. The weight is on my hips, not on my back. Wow what a difference. Awesome!”

Jose (USAF)

“And for the armor panel support - honestly, I am blown away. I couldn’t have imagined it making that much of a difference. I am usually the first to ditch my kit the second I get a break, but this one I wore all day, even driving, and it stayed comfortable. Remarkable!”

Grove

“I have never used a ruck that didn’t make my spine feel compressed before this system.”

Brandon

“I took a hard core fall down a waterfall and busted a few of the plastic buckles.  Having them all modular and interchangeable was a true lifesaver.”

Bryan

Daily Carry, Zero Compromise

“I love the concept of this pack frame system. As a career Marine Infantryman I loved the capability of the modern gun belts, but hated the way it interfered with using the main packs hip straps. I believe you have the first belt that fits what an infantryman actually needs. A belt that integrates well with the pack but allows for mounting gear on the belt.”

Allen

Engineered to Carry What Matters

Every component is designed to integrate, adapt, and perform under real use. Whether you’re building a lightweight setup or a full load-bearing system, this gear is built to move with you and hold up over time.

Made in the USA.
Satisfaction Guarantee.
Reduce. Reuse.
Water Resistant.