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Why Umatilla Wool Is the Heart of Pendleton Wool Shirts


For over a century, Umatilla Wool has served as the foundation for many of Pendleton’s most iconic men’s wool shirts. First developed in 1924 and still woven today in our own mill in Pendleton, Oregon, this 100% virgin wool is sourced from sheep raised in Umatilla County, where the open rangelands and cool climate contribute to a wool that’s both strong and beautiful. Customers return to it season after season for its durability, warmth, and signature Pendleton comfort.

So, what makes Umatilla Wool shirts so popular, and how does this heritage fabric continue to meet the demands of today’s wardrobes? Let’s take a closer look.

What Is Umatilla Wool?

Umatilla Wool is a midweight fabric made from 100% virgin wool. This means the wool comes from the first shearing of the sheep, making it softer and more resilient than wool that has been reprocessed or recycled. Sourced from local ranchers in Umatilla County, the wool is then dyed, spun, and woven in Pendleton’s mill—one of the last remaining woolen mills in the United States. That local, vertically integrated process is a big part of what sets Umatilla Wool apart: Pendleton has full control over the quality, sustainability, and consistency of the material, from sheep to shirt.

Why Choose a Pendleton Wool Shirt Made with Umatilla Wool?

Man and woman standing outside with a horse wearing Pendleton Umatilla Wool shirts
Pendleton offers both men’s and women’s shirts in our Umatilla Wool

When investing in a shirt, buyers are often looking for something with lasting value, everyday comfort, and dependable quality. Umatilla Wool offers all of that, and more. Here’s why this wool fabric continues to be a customer favorite.

  • Durable. Umatilla Wool shirts are made to stand up to everyday wear, whether you’re working outdoors, commuting through the city, or heading out for a weekend adventure. The fabric holds its shape well over time and doesn’t wrinkle easily, making it ideal for travel or repeat use.
  • Comfortable. The midweight construction provides warmth without bulk, and the natural breathability of wool ensures that the fabric remains comfortable across seasons. It’s soft right off the hanger but becomes even more flexible and familiar with each wear, molding to the body over time.
  • Easy to care for. Unlike many traditional wool garments, Pendleton shirts made with Umatilla Wool are machine-washable. You get all the natural benefits of the fiber without the dry-cleaning bill.
  • Woven in the USA. Every Umatilla Wool shirt is woven in the Pendleton mill and cut and sewn with attention to detail and craftsmanship. That commitment to domestic manufacturing ensures each shirt carries with it nearly 100 years of heritage and expertise.

Top Pendleton Shirts Made with Umatilla Wool

While Umatilla Wool is the base for many of Pendleton’s bestselling pieces, a few standout styles have become icons in their own right. Each shirt brings a different attitude and purpose to the table, while all share the comfort, quality, and strength of Umatilla Wool. Below are four of the most popular styles, with details on what makes each one special.

The Board Shirt is perhaps Pendleton’s most recognized style. Known for its retro-cool look, it was famously worn by the Beach Boys and remains a symbol of California surf culture. Made with Umatilla Wool, the Board Shirt features a straight hem, button-flap chest pockets, and a camp-style collar. Its clean silhouette and midweight fabric make it a versatile layer for cooler weather or coastal breezes.

The Trail Shirt is a rugged favorite that nods to workwear, blending utility with timeless design. It features elbow patches for added durability, a straight collar for a refined look, and a single chest pocket for function. Its structured shape ensures it always looks polished, even when you’ve been out all day. It’s a great everyday shirt for men who want something comfortable but capable.

The Lodge Shirt is a go-to layer for fall and winter. Built with a little extra heft and warmth, it’s ideal for cooler temperatures. Its simple design—with a classic collar and one flap pocket—lets the texture and quality of the Umatilla Wool take center stage. It’s an easy grab-and-go shirt for chilly mornings, brisk hikes, or just lounging by the fire.

The Canyon Shirt blends a Western aesthetic with Pendleton’s heritage wool construction. It features pointed yokes, snap buttons, and a touch of attitude, but doesn’t sacrifice comfort or versatility. It’s perfect for those looking to bring a little character into their wardrobe, without compromising on practicality. The Canyon Shirt looks just as good tucked in at a ranch wedding as it does layered over a tee on a weekend trip.

Each of these styles benefits from the strength and natural performance of Umatilla Wool. Whether you’re drawn to the classic Americana of the Board Shirt or the utility of the Trail Shirt, there’s a Umatilla Wool shirt that fits your lifestyle and aesthetic.

How Umatilla Wool Compares to Other Fabrics

When comparing wool options, it’s easy to get overwhelmed. Here’s how Umatilla stacks up against other common fabrics and wool types.

Compared to cotton, Umatilla Wool provides better insulation, naturally resists odor, and is far more durable. While cotton can shrink and lose shape over time, Umatilla Wool holds its form even after multiple washes. And unlike cotton flannels that may pill or wear out at the elbows, Umatilla’s strong fiber structure resists abrasion.

Compared to finer wool types like Merino, Umatilla Wool is heavier and slightly more structured, making it better suited for shirts and outer layers. While Merino may be more appropriate for base layers or dressier garments, Umatilla Wool shines in casual, rugged applications. Umatilla stands out because it is machine-washable—something not often found in high-quality wool garments. That added convenience means more wear and less worry.

How to Care for a Umatilla Wool Shirt

Taking care of Umatilla Wool is easier than you might expect. For best results, machine wash in cold water on a gentle cycle with a mild detergent. Avoid bleach and other harsh chemicals, as they can break down the natural fibers. Hang the shirt to dry or tumble dry on low if needed. A light press or steam will help restore its shape if necessary, but the shirt’s structure generally holds up well without much maintenance.

The machine-washable finish of Umatilla Wool is one of its most loved features. It means you can enjoy the feel and benefits of wool without a trip to the dry cleaner.

FAQs About Umatilla Wool

What is Umatilla wool made from?
Umatilla Wool is made from 100% virgin wool sourced from sheep raised in Umatilla County, Oregon. It is woven in Pendleton’s mill and used to make many of Pendleton’s bestselling men’s shirts.

Vintage ad for Pendleton Wool Shirts circa early 1900s
Vintage Pendleton Catalog Page Showing the Board Shirt

Can you machine-wash Umatilla Wool shirts?
Yes. One of the biggest benefits of Pendleton’s Umatilla Wool shirts is that they are machine-washable. Use cold water and a gentle cycle, then hang to dry or tumble dry on low. It’s wool made to fit into your daily routine.

How is Umatilla Wool different from other types of wool?
Umatilla Wool is midweight and built for utility. It’s more rugged and structured than fine wool like Merino, making it better suited for everyday shirts, layers, and outdoor wear. It also stands out for its ability to be washed at home, a rare feature for wool of this quality.

What are the best uses for Umatilla Wool shirts?
Umatilla Wool shirts are great for layering, outdoor work, casual wear, and travel. They work well on their own or as part of an outfit, and they offer both comfort and performance in a range of settings.

Umatilla Wool: The Very Best of Pendleton’s heritage

Umatilla Wool represents the very best of Pendleton’s heritage: high-quality wool sourced from local ranchers, time-tested craftsmanship, and classic American design. From the mill in Oregon to your closet, every Umatilla Wool shirt reflects a legacy nearly a century in the making. Whether you’re after rugged durability, everyday comfort, or timeless style, a Pendleton wool shirt made with Umatilla Wool is a smart, lasting investment.

Explore and shop the full collection and find your next favorite at Pendleton’s Men’s Shirts.