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Offering a lighter weight alternative to our signature Ultra Heavy Flannel (UHF) shirts, our 9oz selvedge unbrushed flannels provide classic Iron Heart styling in a cooler, more breathable option for the warmer months.

We’ve designed this season’s plaids to offer a sort of “greatest hits”, inspired by some of our most popular UHF colourways from over the years. Unlike previous 9oz flannels — which were rope- and sulphur-dyed to allow for fading — these fabrics are woven with more reactive-dyed yarns for a more colourfast finish. With only four shuttle looms in Japan capable of producing these intricate patterns (which require switching the weft yarn mid-weave), our SS26 shirts are among the most distinctive Japanese-made flannels available this season.

This model features our regular fit work shirt cut, complete with white 4-hole button fastenings, in a classic black check — inspired by the popular IHSH-341-BLK from FW22.

[SIZE-GUIDE-INCH]

Tag Size	XS	S	M	L	XL	XXL	XXXL	XXXXL
Shoulders	16.4	17.3	17.8	18.7	19.5	20.5	21.2	21.8
Length	27.5	28.2	28.9	29.5	30.0	30.7	31.2	31.5
Chest (P2P)	20.5	21.2	21.9	22.8	23.5	24.4	25.2	25.9
Waist	19.4	20.0	20.8	21.6	22.4	23.1	23.9	24.5
Opening	19.0	19.8	20.6	21.4	22.0	22.8	23.5	24.2
Sleeve	23.7	23.5	24.3	25.0	25.5	25.9	26.7	26.8
Sleeve Opening	4.3	4.4	4.5	4.6	4.7	4.9	5.0	5.3

[SIZE-GUIDE-CM]

Tag Size	XS	S	M	L	XL	XXL	XXXL	XXXXL
Shoulders	41.7	43.8	45.2	47.5	49.4	51.9	53.8	55.2
Length	69.7	71.5	73.4	74.8	76.2	77.9	79.2	79.9
Chest (P2P)	52.1	53.8	55.6	57.9	59.7	62.0	63.9	65.7
Waist	49.3	50.8	52.8	54.9	56.9	58.5	60.6	62.2
Opening	48.3	50.2	52.3	54.2	55.9	57.9	59.6	61.5
Sleeve	60.2	59.7	61.7	63.4	64.8	65.8	67.7	67.9
Sleeve Opening	10.8	11.0	11.4	11.6	11.9	12.4	12.7	13.3

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