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Iron Heart

21oz BS69xSOP420 Superblack Fades to Grey

Made exclusively in collaboration (tri-laboration?) with Iron Heart for SOP and Berkeley Supply, the BS69xSOP420 is Iron Heart's esteemed 777 lower mid rise slim straight fit in the brand's infamous Superblack Fades to Grey, a proprietary 21oz denim that softens substantially and fades quickly to high contrast greys and whites.  Model is 5’10”, 175 lbs wearing size 31. 


-Made in extremely limited numbers for collaboration with Iron Heart and Berkeley Supply

-Made of 21oz "Superblack Fades to Grey" (SBG) sanforized Japanese selvedge denim. Never before offered in the 777 fit 

-Black sulphur rope dyed warp & black reactive dyed weft 

-Super Sllim cut w/ taper from the knee down

-Lined back pockets, button fly, hidden rivets, belt loops sewn into waistband

-Selvedge side seams and fly construction

-Heavy veg tan leather patch featuring custom collab artwork


Black sulphur rope dyed warp/ black reactive dyed weft. With time, the warp will fade but weft will not.  

Sizing Recommendations:

This style runs large. We suggest sizing down one from your true waist size. 


Made in Japan


Size Waist Front Rise Thigh Leg Opening
28 14.6 9.3 10.7 6.6
29 14.8 9.5 10.9 6.8
30 15.3 9.7 11.1 6.9
31 15.9 9.9 11.4 7.1
32 16.5 10.2 11.7 7.2
33 16.8 10.4 12 7.5
34 17.25 10.6 12.4 7.7
36 18.2 11.1 13 8.1