I’m considering the following options:

IHM 51: https://ironheart.co.uk/collections/fall-winter-2026-collection/products/ihm-51-olv
IHM 54: https://ironheart.co.uk/collections/fall-winter-2026-collection/products/ihm-54-odg
IHJ 168: https://ironheart.co.uk/collections/fall-winter-2026-collection/products/ihj-168-blk

For context I owned the IHM27 (M65) a while back but let it go … for some reason it didn’t quite fit right over layers, but I always loved the jacket so maybe this years dimensions would work out …).

I plan to wear this as a 3-4 season jacket mainly over thermals, heavy weight long sleeves, sometimes UHFs.

I really like the look of the IHM51 but I’m not sure I love the pigment dye and lack of zipper. Otherwise I think this would be the winner due to its larger silhouette and collar aesthetic. It certainly is a great looking jacket to my eye.

The IHM 54 is well … iconic, but the last time around I found it sort of tight (pulling ) in the chest area with layers, even though by the size chart it should’ve been more than enough for me …

The IHJ168 looks great as well (completely different aesthetic) and I can see how it might be the most comfortable one to layer with. I can see how it will slip on and off with ease due to the lining and generous cut. The only thing that gives me pause are the knitted cuffs (I’m a watch guy).

So there’s the conundrum. Any advice it greatly appreciated, and no “buy all 3” isn’t an option