Functionality Passed Down for Over 70 Years: How KELTY Created the Blueprint for Modern Backpacks

From aluminum frames that serve as the backbone of modern packs to waist belts that shift weight from shoulders to hips—KELTY is the brand that created the blueprint for features taken for granted today and became the world's first to adopt CORDURA® nylon for backpacks.

Since its founding in 1952, KELTY has evolved with the times—from gear supporting professional explorers to everyday daypacks—while remaining steadfast in its commitment to function-first craftsmanship.

We spoke with Kento Ariga, Vice President of Ariga International Co., Ltd., about the journey and philosophy of this brand that has spanned over 70 years.

KELTY Started with an Upgrade to the Wooden Frame

The KELTY story began in Southern California in 1952. Founder Dick Kelty loved hiking, but was frustrated with the backpacks available at the time. Packs combining wooden frames with canvas fabric were heavy, rigid, and uncomfortable to wear.

During World War II, Dick worked on bomber modification at aircraft manufacturer Lockheed, acquiring knowledge of light, durable materials like aluminum. After the war, while working as a carpenter, he connected his expertise with his own hiking frustrations and decided, "If nobody else will make a better one, I'll build it myself." Thus began his journey into backpack crafting.

Aluminum Frames and Waist Belts: The Origin of the Modern Backpack

His first major innovation was the frame. Replacing heavy, hard-to-work wood with aluminum allowed for a lightweight structure that could be contoured to the human body, drastically improving fit. He then swapped canvas fabric for lightweight, durable nylon sourced from leftover parachute material. This combination laid the foundation for modern backpack construction.

Another groundbreaking innovation was the waist belt. After noticing a friend tuck the bottom of the frame into his back pocket and mention how much lighter it felt, Dick realized he could redistribute the load away from the shoulders and onto the hips.

"He thought, 'If that's the case, why not attach a waist belt here to shift the weight to the hips?' Once he tried it, it received rave reviews, making him realize this could actually be a viable business."

What began as a two-person operation with his wife grew rapidly: from 29 backpacks in 1952 to 90 the following year, and 220 the year after as word spread. Eventually, they set up a dedicated factory and expanded into a full-fledged business.

Chosen for Everest and Antarctic Expeditions

Before long, KELTY backpacks earned the trust of seasoned professionals. A pivotal moment came in 1963, when an American expedition team wearing KELTY "FRAME PACK"s successfully summited Mount Everest via the notoriously difficult West Ridge route. In 1966, the packs were also adopted by an American team operating in Antarctica.

Proven performance in extreme environments—from the Himalayas to Antarctica—demonstrated that KELTY was far more than just a user-friendly bag; it was truly durable, high-performance gear. In just over a decade since its founding, KELTY had transformed from a solo craft project into a brand trusted by professionals.

These achievements not only boosted the brand's visibility but also validated in real-world conditions the core philosophy pursued since day one: reducing the burden on the wearer.

From Professional Gear to Everyday Daypacks

In the 1970s, the mainstream design of backpacks shifted from external frames—where the frame is exposed on the outside—to internal frames housed inside the pack. Around the same time, KELTY began leveraging the expertise it gained from professional gear to expand its lineup into everyday items, such as daily daypacks.

Translating professional-grade functionality into simple designs that anyone could use marked a major turning point. Through this pivot, KELTY expanded its footprint beyond climbing and hiking, growing into a brand beloved in urban settings as well. It was the crucial moment that led to KELTY's modern status as a brand embraced everywhere from the trails to the city streets.

The rationality originally honed for extreme environments translated seamlessly into everyday user-friendliness. Even as the intended use evolved, KELTY’s commitment to prioritizing the core essence of gear remained unchanged.

The "DAYPACK": Carrying On the Teardrop Shape and CORDURA® Fabric

The brand's iconic "DAYPACK" perfectly symbolizes this philosophy. Its distinctive silhouette features a classic teardrop shape, wide at the bottom and tapering toward the top.

The materials carry their own rich history. In fact, for INVISTA, the manufacturer of CORDURA®, KELTY was the very first client in the world to adopt CORDURA® nylon for use in bags.

Even today, standard models in KELTY’s Vintage Line continue this tradition by using CORDURA® fabric. Offering long-lasting durability while blending effortlessly into daily life, this choice of material clearly demonstrates the practicality KELTY has prioritized for decades.

While retaining its classic exterior, the internal structure has been modernized for today’s needs. It features an organizer with multiple pockets for small items, while the shoulder straps are cushioned with durable, sag-resistant EVA padding. By evolving usability to match the times without dramatically changing its iconic appearance, KELTY once again demonstrates its commitment to functionality.

The classic "FANNY" series follows the same ethos. Originally designed as a waist pack to carry maps and snacks while climbing or skiing, it has found renewed popularity today as an everyday bag as our daily essentials have shrunk. Among the available sizes, the "MINI FANNY" is a prime example of how KELTY’s core offerings have evolved to adapt to changing lifestyle needs.

Compact Bags Born from Modern Lifestyles

In recent years, KELTY’s product development team has been creating items tailored to contemporary needs. Small shoulder bags like the "ES ROUND TOP BAG" were introduced in the 2010s, specifically designed to fit today's daily essentials and lifestyle.

"During the sacoche trend, smaller-capacity bags were favored. However, with hotter temperatures recently, people carry drinks more often. Since this bag has a wide gusset, it comfortably fits a 500ml plastic bottle. I think customers choose it with those practical situations in mind."

Though the items carried inside have shifted—from maps and ski wax in the past to smartphones, mini wallets, and water bottles today—KELTY’s mindset of considering what people carry and how they use it has remained unchanged since the company's founding.

The "Form Follows Function" Mindset Unchanged for Over 70 Years

At the end of the interview, Ariga described the core of KELTY by saying, "Function always comes first." First, you consider functionality, and by giving shape to that function, a simple design naturally emerges. Instead of starting with design, the form is derived from its purpose as a functional tool. This approach is identical to Dick Kelty's original idea when he set out to solve the discomfort of wooden-frame packs.

Starting with innovations like aluminum frames, nylon fabric, and waist belts, and continuing through to the DAYPACK and today’s compact shoulder bags, this legacy lives on. While product shapes and usage settings may change, the core belief of creating "more comfortable tools" has been passed down for over 70 years.

The reason KELTY has earned long-lasting support is that instead of chasing trends, it has consistently focused on functionality for the user, distilling those needs into simple, elegant forms.