Fade Friday – Iron Heart 634SR (2 Years, Multiple Washes)

Though we try to reserve our weekly Fade Friday segment for those worn pairs of denim that are thoroughly photographed (fit photos, included!), this now-extinct pair of Iron Heart 634SR was just too impressive to pass up. Originally featured in one of Iron Heart‘s Facebook albums, this pair belongs to denim head, “MJ”, and were put through the wringer on a daily basis for approximately two years.

After connecting briefly with MJ to get a better sense of his 634SRs, we learned that he wore them nearly everyday at his day job as an auto mechanic and treated them to three healthy machine washes, as well as multiple hand washes. As a result, he was left with a stunning, albeit absolutely destroyed, pair of heavyweight raw denim.

To lend a brief background on the 634SR, they serve as Iron Heart‘s 5 Year Anniversary straight cut model. As one would expect with the motorcycle-inspired Japanese label, the raw jeans incorporate a super heavy 21 oz. fabric (23 oz. post-shrink) and litany of sturdy hardware detailing. Unfortunately, as production was limited to just 400 pairs, the 634SR is no longer available for purchase.


  • Name: Iron Heart 634SR
  • Weight: 21 Oz. pre-shrink / 23 Oz. post-shrink
  • Fit: Straight with roomier thigh
  • Other details:
    • Bronze coloured hardware
    • Button fly and hidden rivets

Photos – Before

Iron Heart - Before

Photos – After

Iron Heart 634SR - Front and Back

Iron Heart 634SR - Back Closeup