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Iron Heart

IHSH-238 Ultra Heavyweight Flannel Work Shirt Black Crazy Check

Our first Ultra Heavyweight flannel work shirt from Iron Heart does not disappoint. Constructed of beefy cotton flannel woven with Aspero cotton (known for its soft hand while retaining strength) in a black "crazy" check pattern. Iron Heart flannel work shirts are highly sought after every year and don't stick around long anywhere, so no crying if you hesitate and miss out! Model is 5'10', 175 lbs wearing size Medium. 


-Made of 12oz ultra heavyweight cotton flannel, woven with Aspero cotton yarn

-Single brushed face-side with double brushed reverse side for comfort of wear

-Black cat's eye buttons

-Single, double, and triple needle stitch construction

-Once washed for softness but will shrink in hot water. We recommend washing in cold water and hang-drying to reduce risk of shrinkage   


Black Crazy Check 

Sizing Recommendations:

Fit is true to size 


Made in Japan


Size Chest Shoulders Front Length Sleeve Length
S 21 17 27.5 24.75
M 21.5 17.75 28 25.25
L 22.5 18.5 28.75 26
XL 23.5 19 29.25 26.5
XXL 24 20 30 26.75