Excellent quality as expected from
"Excellent quality as expected from Iron & Resin. I recommend sizing up with their flannels."
We offer FREE economy shipping on all contiguous U.S. orders $99+. Please read our returns policy on our FAQ page for more details. All sale items are final.
Exchanges are free on all contiguous U.S. orders. Start one from your order confirmation email, or read the full policy on our FAQ page. All sale items are final.
Size Recommender
We knew the second we slid the Sierra Shirt on that this wasn't going to be one of those flannels that just sat idly by in your closet... No, this is not that type of shirt. This is one of those pieces that makes you question what you did before. Made from a 7oz twisted cotton, and outfitted with our custom plaid flannel design, this is a piece that actually feels as good as it looks.
THE SPECS + DETAILS
Our goods are meant to be worn in, not out. With the correct care, we want our customers to be able to treat their gear with the tough love it was intended to take. Take a look at our Wash & Care Guide to keep your goods performing for a lifetime.

The rugged style and uncompromising construction of the Saddleback shirt reminds us of the denim of old. You know, the stuff that will actually stand up.

This old-school western style shirt is updated with a modern tailored cut, making it an instant classic that deserves a spot in anybodies wardrobe.

Our brand mission is to create purposeful and quality-built provisions and make them last a really long time. We continuously remind ourselves about what care means as a brand.
Good things never go out of style. And great things get better with the passage of time.
Our brand mission is to create purposeful and quality-built provisions and make them last a really long time.
Every product page has a Size Guide link next to the size selector with garment measurements. Most of our shirts and jackets run true to size with a modern tailored cut — if you're between sizes, size up.
Free economy shipping on all contiguous U.S. orders over $150. Economy takes 5–7 business days, expedited 2–3. Orders placed before 12pm PT ship the same business day.
30-day free exchanges on all domestic online orders. Returns are accepted within 30 days on unworn items with tags attached. All sale items are final.
Yes. International shipping is calculated at checkout and duties are collected up front so nothing is owed on delivery.
Most of it. Our Repair & Replace programme will patch, restitch or re-snap anything we made — send it in and we'll quote the work before we start.
Overall rating: 4.96 / 5 from 25 reviews.
The Sierra Shirt is praised for its perfect fit, softness, and high-quality construction. Made from 7oz 100% cotton yarn-dyed twisted flannel, it offers a comfortable and true-to-size experience. Customers appreciate its custom plaid design and thoughtful details like INR metal buttons and double chest pockets.
Review topics: [color, fit, quality, shirt, looks, material, flannel].
"Excellent quality as expected from Iron & Resin. I recommend sizing up with their flannels."
"I like the somewhat shorter hemline compared to my other brands' flannels. 5'11" 170lbs and the M is just big enough to be comfortable and not sloppy."
"Great quality fabric fits in the body sleeves are a little short. They could either make this in a tall size or make the sleeves a little longer for tall guys."
"This flannel (rust) looks so much nicer in person. The flannel is well made and has a nice heft to it. I can this lasting for many years to come. It almost feels a little cropped but it's perfect for my height (5'10"). I think that's why I love it so much! This is definitely not your average flannel!"
"Matched the media exactly. Great fit and robust material!"
"This flannel fits me perfectly, is soft and comfortable, is made well and looks great! I’m about to pull the trigger on another color."
"Love this shirt. Super comfortable. Well made. I like it so much I am buying another."
"Great fit and quality!"
"Super nice flannel - metal buttons are cool - soft hand - 5’10” /175 lbs and a Medium has a nice tailored fit w/o being slim fitting. This is my third Iron & Resin flannel . . . I might be addicted."
Forged in Ventura, CA in a mass produced, disposable world, Iron & Resin is a product of "one-off" culture. Where men still build, by their own hands, the craft they ride, be it water or land.