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Iron Heart

16oz Slubby Selvedge Denim Straight Cut - Indigo Overdyed Black


Crafted in Japan by WORKS INC. under the direction of designer Shinichi Haraki, the Iron Heart 634 is a timeless straight-leg jean inspired by the iconic 1966 Levi’s 501. Featuring a medium rise and a straight silhouette with a subtle taper from the knee, the 634 offers a classic fit with a slightly wider leg opening to accommodate boots and a variety of footwear.

Constructed from 16oz Japanese slubby selvedge denim, the fabric is loosely woven to create a heavily textured yet breathable feel. After construction, the jeans are overdyed black, giving them a deep, rich finish while allowing the indigo-dyed warp to reveal unique blue undertones and grainy fading with regular wear and washing.

Built with Iron Heart’s signature attention to detail, the jeans feature a traditional button fly, hidden rear pocket rivets, reinforced belt loops, heavy-duty chain-stitched construction, and a vegetable-tanned leather patch. The fabric is sanforized, one-washed, and overdyed to minimize shrinkage while maintaining its distinctive character.
 
  • Made in Japan
  • Designed by Shinichi Haraki, handcrafted by WORKS INC.
  • Iron Heart 634 straight fit
  • Medium rise with a straight leg and slight taper
  • Wider leg opening for boots and most footwear
  • Classic five-pocket design
  • 16oz Japanese slubby selvedge denim
  • 100% cotton
  • Indigo rope-dyed warp with white organic cotton weft
  • Right-hand twill weave
  • Overdyed black after construction
  • Designed to develop distinctive fading and character over time
  • Traditional three-button fly
  • Iron Heart branded waistband button
  • Hidden rear pocket rivets
  • Heavy-duty poly/cotton stitching
  • Single- and double-needle chain-stitched construction
  • Reinforced belt loops sewn into the waistband
  • Heavy cotton pocket bags with lined rear pockets
  • Selvedge ID at the side seam, fly, and coin pocket
  • 1.5mm vegetable-tanned steerhide leather patch
Care
  • Sanforized, one-washed, and overdyed to minimize shrinkage
  • Waist will stretch approximately 1” with regular wear
  • Machine wash cold (30°C) on a gentle cycle
  • Hang dry
  • Do not tumble dry


Model is 6’2 (188cm) and wears a size 32
cad  509.00
Size Chart
Return Policy
Price Match & More
123139 | IH-634S-SLBod
For regular priced items, returns and exchanges can be made within 7 days from the date of purchase. Upon inspection and approval, exchange or store credit will be provided for the value of the returned item(s). No refunds. All items purchased at a discounted rate are considered final sale, and cannot be returned or exchanged. Customer is responsible for all charges incurred from an exchanged or return. All online orders received free shipping will require a repayment of the initial shipping cost upon return of the product, which will be deducted from the store credit. To view our complete Returns and Exchanges policy, please click here.
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