11 sizes, right up to Tall & 5XL. Even free sleeve alterations...


Lightweight Flannel Work Shirt 2024

Pre-Order Price
Full Price:

Super soft, detailed, throw-on brushed cotton shirt with hand pockets, that's built to last.


Your jacket will be sent from 7th March 2024.

Find out more
Size Guide
Size & Fit Guide
Our customers rave about our fit, check out the reviews.

FRAHM jackets are cut for real men's bodies and action. We've subtly altered classic tailoring for more movement, for real life. Our jackets do not have a restrictive teenage 'fashion' cut. 

Size Chart: 




Size by your actual body measurements, not copying your size in another brand. Fit can vary wildly between brands and their size may not be ours.

HEIGHT: This is the easy one – measure yourself from the top of your head to your heel. (Sometimes easier to do against a wall we find.)

CHEST: To find out your chest size, take a tape measure and wrap it under your armpits at the fullest part of your chest.

ARM: Measure from the shoulder seam to the bony bit on your wrist (yes, that is the biological term).



If you can't measure your chest circumference, the best guide to size is your best fitting existing jacket or suit jacket. Then Live Chat us and we can advise what your size is.

"Tall" sizes are for very tall men, offering exactly the same jacket with significantly longer arms and torso. Don't buy one if you're above average - our standard sizes will fit.

If you have shorter arms, we will happily have your sleeves shortened from a minimum of 3cm for you when possible (most of the time it is). Typically alterations take 3 - 4 weeks.  

If you have any questions please do Live Chat or email us on hello@frahmjacket.com



Its bolder brother, the Lightweight Tartan Workshirt, is such a favourite, we can now offer the same shirt, in subtle block colours, not just tartan.

Now to decide...

Quality & Detail

Ultrasoft 130 gram 100% cotton brushed flannel

Corozo nut buttons from Courtney & Co. of Gloucestershire

Twin needle stitching throughout, for toughness

Interior sewn-in herringbone weave polyester brand and care labels

Design Details

Two button flap chest pockets and two hidden hand pockets

Button adjusted cuffs with single red brand button on left cuff

Pen/sunglasses slot on left chest pocket

Hang loop at neck

No exterior branding

Machine washable cool, iron medium heat

All care instructions embroidered in plain English into the inside of garment - no cheap flappy labels

Made in the European Union from materials sourced in the UK & EU

Customer Reviews

Based on 133 reviews
Trevor Jones
Top Button Up

Just received my lightweight work shirt. I ordered it when my partner put my similar blue cotton/cashmere work shirt on a hot wash! It now fits her perfectly: funny that… I went green this time, for a change but also because I wasn’t keen on the blue with white button combo. Anyway, here it is, as ever a few months after pre-ordered. I forget and it is always a pleasant surprise. This one is slightly lighter than my previous beloved. And that’s lovely. Usual quality: seamless seams, solid buttons, perfectly pocketed. A throw over a t shirt kind of staple for those spring and early autumn days.
Now I have to decide what to spend my Xmas Frahm voucher on? A guilty present from a guilt free girl: currently washing her car in a perfectly sized blue cotton/cashmere combo!

Fergus Mathieson
RonSeal Classic Cotton Merino Shirt XL: Does more than it says on the Tin (well description)

Received my shirt as part of the great Christmas offer for a jacket pre order. I read the reviews on the fit and went for XL.
I`m 5,8" with a 43/44 chest and broad shouldered. The fit will be perfect when I loose the few extra pounds that I shouldn`t be carrying .
The quality of the shirt is exceptional, excellent stitching, quality buttons and great design. The feel of it is also fantastic, and who knew a fully sewn inner label could also look good!!
My only mistake, after a lot of research on the jackets, numerous measurements and speaking with the very helpful Frahm team I pre-ordered two jackets, two weeks apart. Had I ordered them together I would have two of these exceptional shirts!! Kicking myself on that!!

Love my shirt

Most definitely the softest and most comfortable shirt that I own. It's just lovely. It also goes brilliantly with my lightweight gilet!

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