Brown plaid flannel shirt with buttoned front and single chest pocket, displayed on a light background.
Black and gray plaid flannel shirt with button closure and chest pocket, displayed on a white background.
A black and gray plaid flannel shirt is laid flat, showcasing its back and long sleeves, against a plain white background.
A man in a brown plaid shirt stands against a brick wall, looking to the side with a thoughtful expression.
Close-up of a brown plaid shirt with button details, highlighting the fabric texture and pattern in warm lighting.
Close-up of a brown plaid flannel shirt with silver buttons and a chest pocket, labeled "Premium Goods" at the collar.
Close-up of a brown plaid shirt pocket with a button, showcasing the fabric texture and pattern in warm lighting.
Close-up of brown plaid fabric with intersecting lines, showcasing texture and pattern in warm lighting.
65% off
Brown plaid flannel shirt with buttoned front and single chest pocket, displayed on a light background.
Black and gray plaid flannel shirt with button closure and chest pocket, displayed on a white background.
A black and gray plaid flannel shirt is laid flat, showcasing its back and long sleeves, against a plain white background.
A man in a brown plaid shirt stands against a brick wall, looking to the side with a thoughtful expression.
Close-up of a brown plaid shirt with button details, highlighting the fabric texture and pattern in warm lighting.
Close-up of a brown plaid flannel shirt with silver buttons and a chest pocket, labeled "Premium Goods" at the collar.
Close-up of a brown plaid shirt pocket with a button, showcasing the fabric texture and pattern in warm lighting.
Close-up of brown plaid fabric with intersecting lines, showcasing texture and pattern in warm lighting.

Slab Shirt

$ 45.15 $ 129.00
Description

Built to be lived in, the Slab Shirt carries the tradition of West Coast work ethic and laid-back grit. It’s the kind of flannel that’s seen morning fog roll off the Pacific, been tossed over a hoodie when the winds shift offshore, and draped over a passenger seat still sandy from the day before. This shirt is less of a garment and more of a uniform - for those who keep it local, keep it simple, and keep showing up.

THE SPECS + DETAILS

  • 11.5oz 100% heavyweight yarn dyed cotton twill
  • Custom INR metal buttons
  • Single chest pocket with top entry flap
  • Locker loop draw cord on inside collar
  • Available in black and brown
  • Imported

HOW IT FITS

The Slab Shirt runs true-to-size; however, if you tend to be between sizes or prefer a roomier fit, we would recommend ordering a size up.

Wash & Care

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.

Shipping & Returns

We offer FREE economy shipping on all contiguous U.S. orders $150+. We also provide 30-day FREE exchanges on all domestic online orders. Please read our returns policy on our FAQ page for more details.

All sale items are final.

Color
Size
Size Guide
Minus Plus
Earn
45
Points
More details Right

Overall rating: 5.0 / 5 from 7 reviews.

AI Generated Review Summary

Summary topics

Review topics: ["flannel","shirt"].

Review highlights

Reviews

Fantastic

"Love hefty flannels and this does not disappoint! The shirt fit and style is just the way I prefer. The quality is undeniable!"

— Shibu M. (5/5)

👍😁

"Another fantastic quality product. As with the other IR flannels I already own, super happy with purchase. Gen X so I remember when most things were manufactured to last, now referred to as “heritage” with quality footwear for example. IR flannels are heritage standard!"

— Sean H. (5/5)

Slab short

"What a great shirt. It’s heavy and stiff, feels like armour. It will stand on a table like someone is wearing it. Wash it, wear it, break it in."

— Andrew P. (5/5)

Slab Shirt

"The shirt looks even better in person!"

— Lauren B. (5/5)

Heavy Duty Flannel

"It seems like a good-looking shirt with a sturdy, lived-in vibe rather than anything fussy."

— Dennis I. (5/5)

Eye rolling excellence

"the Slab flannel shirt. . . handsome, heavy and ridiculously well made. I got the brown, kind of wish i'd gotten the black as well. Typically whatever you buy from I & R will make you very happy. 🔥⚡️💥"

— Sheila G. (5/5)

Awesome Shirt

"Straight up, these I&R flannels are everyday, anytime go to shirts."

— Richard B. (5/5)

Q&A