Iron Heart IHSH-435 Ultra Heavy Flannel American Check Work Shirt - Blue
In stock
The IHSH-435-BLU Work Shirt is the latest entry in Iron Heart’s Ultra Heavyweight Flannel programme. Heavy-duty construction meets double-brushed warmth and comfort - here in a rare, Aspero cotton yarn “American Check” weave.
FABRIC: 12oz, 100% Aspero cotton yarn
STYLE/FIT: Slim/regular
COLOUR: Blue
METHOD: Washed
DETAILS:
-IHSH-435-BLU
-American check pattern
-Reactive-dyed warp & weft — no colour loss expected
-Fabric single-brushed on face, double-brushed on reverse
-Black cat’s-eye buttons
-Classic patch pockets with button fastenings and pen holder
-Single-, double-, and triple-needle stitch construction
-Straight back yoke
-Felled internal seams
-Side seam gussets with chainstitch run-off
-Felled seams, double chain-stitched with red bobbin thread
-One-washed, but may shrink up to half a size with repeated or high-heat washing/tumble drying
ORIGIN: Made in Japan
Iron Heart’s UHFs (Ultra Heavy Flannels) are woven from hand-selected Aspero cotton grown in the foothills of the Andes Mountains. This low-yield cotton is known for its excellent heat retention, making Iron Heart’s flannels some of the warmest available. Add to that a single-brushed interior and a double-brushed exterior, and you have a flannel shirt that’s as soft as it is solidly built.
This 2025 edition comes in a mellowed-out “American Check” — a subtle blend of sky blues, creams, and yellows that has a lightly worn look from the get-go. This time around, Iron Heart has opted for a reactive dye process, giving the shirts a more colourfast finish. No fading is expected here.
Finished with Iron Heart’s usual overbuilt bells and whistles: felled seams, triple-needle stitching, patch pockets, and gusseted side seams with chainstitch run-off.
Elliot wears a size Medium Work Shirt. He is 185cm tall and weighs 74kg / 6ft 1" and 163 lbs.
Important: The best way to determine the size you need is to measure a similar item you already own and compare with the actual sizing as per the table below. Do not go by tagsize alone.
| INCHES | S | M | L | XL | XXL | XXXL |
|---|---|---|---|---|---|---|
| Chest | 41 | 43 | 44.5 | 45.5 | 46.5 | 48.5 |
| Waist | 19 | 20 | 20.5 | 21.5 | 22.25 | 22.75 |
| Shoulder Width | 16 | 17 | 17.5 | 18.5 | 19 | 20 |
| Opening | 20.5 | 21 | 21.5 | 22.25 | 23 | 24 |
| Vertical Length | 27 | 27.5 | 28.5 | 29 | 29.5 | 30 |
| Sleeve Length | 24.75 | 25.5 | 26 | 27 | 27.75 | 28 |
Stage 1: The waist
- Button up the jean.
Lay flat with the top waist band evenly flat on the back waist band.
Measure from one side to the other keeping the jean flat & double the measurement.
Stage 2: The hip
- Measure 3 inches or 7.5cm from the crotch stitch.
Measure from side to side flat across the jean at this point.
Stage 3: Front rise
- Lay flat and measure from crotch seam to top of jean with top button fastened
Stage 4: Back rise
- Measure from crotch seam to top of the back of the jean.
Stage 5: Thigh
- Lay flat and measure from crotch across to outside of leg.
Stage 6: Knee
- Lay flat and measure 13” or 33cm from crotch down inside seam of jeans
From here measure from one side of the jean to the other.
Stage 7: hem width/leg opening
- With the jean flat measure from one side of the leg opening to the other.
NB with very heavy denim 18oz and above measure the entire circumference of the exterior of the hem using a measuring tape and divide by 2 for a more exact figure.
Stage 8: Inseam/inside leg
- Lay the jean flat with the inseam at the centre.
Following the inside seam measure from the crotch to the end of the leg.
Stage 1: Chest
- Measure from pit to pit and double the reading.
Stage 2: Shoulder
- Measure across the top from one shoulder seam to the other.
Stage 3: Waist
We measure the narrowest part of the garment outer seam to outer seam between the pit and the opening. If, however, the shirt has gussets, the waist will correspond to the the opening measurement.
Stage 4: Opening
Here we take a cross measurement from seam to seam at the bottom of the shirt.
Stage 5: Length
Measure from the top of the shoulder by the collar to the bottom of the garment.
Stage 6: Sleeve
Measure from the top of shoulder seam to the cuff’s edge.
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