The Iron Heart IH-743-BRN Duck Cargo Pants are available at Rugged Gentlemen Shoppe with fast local shipping and easy returns. Iron Heart produces many garments in limited runs, and certain sizes can become difficult to find once they sell through across retailers. If your size is currently available here, it can be secured while stock lasts.

Our classic cargo pants, cut from 17oz Japanese duck canvas. Designed for a traditionally relaxed fit, our cargo pants exemplify the military-grade engineering that has become synonymous with Iron Heart — with features including triple-needle stitched seams, double-layer knees, brass rivets, heavy twill cotton pocket bags and reinforced belt loops.

Our Fit Notes

The IH-743 cargo pants are cut with a traditional relaxed workwear fit, offering comfortable room through the thigh and leg. The silhouette prioritizes durability and mobility rather than a slim modern profile, staying true to classic military and utility pant designs.

Our Fabric Notes

These pants are made from 17oz Japanese duck canvas, a dense and durable cotton fabric often used in traditional workwear. The plain-weave construction gives the fabric a firm structure, while the brown dye will gradually develop character with wear and washing.

Who This Is For

Well suited for those who prefer a functional workwear fit with extra room for comfort and movement. Ideal for those looking for a tough workwear fabric with substantial weight and long-term durability.

Made In Japan

• Designed by Shinichi Haraki, handmade by WORKS INC. in Japan

17oz Japanese Duck Canvas - Brown

• 100% cotton
• Brown warp and weft
• Plain weave
• This fabric will slowly fade through wear and washing

Features & Construction

• Relaxed cut
• Two rear button-down pockets
• Button-down cargo pockets
• Double-layer knee reinforcement
• Side hand warmer pockets with coin pouch
• Heavy twill pocket bags
• Twill secondary pocket flaps
• Brass rivets
• 7 reinforced belt loops sewn into the waistband
• Iron Heart branded tack button waist fastening
• Universal zipper fly

Constructional Stitching

• Single, double and triple needle stitching
• Poly/cotton thread for enhanced strength and durability
• Bar tack and rivet reinforcements
• Chainstitched side seams
• Felled internal seams

Sanforized & One-Washed

• Sanforization is a post-weave mechanical process which removes most potential shrinkage from a fabric before garment construction
• To further reduce the risk of shrinkage, we wash the completed garment in an aggressive industrial washing machine. This process removes virtually all potential shrinkage.
• No further shrinkage is expected when washed according to our care guidelines

Stretch Details

• This fabric is not expected to stretch significantly at the waist or in other areas

Care Guidelines

• We recommend washing this garment at 30°C with a low (or no) spin cycle. Hang dry, do not tumble dry

Measurement in inches

FAQs

Is this authentic Iron Heart?
Yes. All products sold by Rugged Gentlemen Shoppe are 100% authentic Iron Heart items sourced from Iron Heart Japan.

Why is this sold out elsewhere?
Iron Heart produces limited quantities and popular sizes sell out quickly on the official site and major retailers.

How fast do you ship?
Orders ship from our shop within 24–48 hours (business days).

Can you help with sizing?
Yes, contact us before ordering and we’ll provide real measurements for the exact pair in stock.