The US Army’s original M-1943 is often considered the precursor to the modern military "field jacket." It set the standard for all subsequent models and paved the way for the legendary M-65. For Fall/Winter 2026, Iron Heart presents its interpretation of the M-43, honoring its heritage while adding the brand's signature technical upgrades. The jacket is crafted from 9.5 oz. vintage-style "back-sateen" fabric that is pigment-dyed to gradually fade over time. It features a Japanese Ventile lining for added moisture protection, oversized four-hole buttons for a secure hold, and durable poly-cotton blend stitching throughout. The result is a versatile, functional, and exceptionally durable garment that retains its authentic 1940s military aesthetic.

Click on the button "NOTIFY ME WHEN PARTICULAR SIZE IS AVAILABLE", choose your size and enter your email address. We will notify you when the product has been released.

• 9.5oz Japanese back sateen

• Pigment-dyed warp and weft - will fade naturally with wear and washing
• Water-resistant 6.2oz Japanese Ventile cotton lining

• Two flap-down chest pockets and two waist pockets, all with hidden button
• fastenings

• One internal pouch pocket 5-button placket with hidden buttons

• Buttoned shoulder epaulettes

• Buttoned cuff cinches

• Oversized 4-hole buttons

• Point collar with overlap collar fastening
• Drawstring at waist

• Single and double needle stitch construction

• Poly/cotton constructional stitching

• Tonal stitching and bar tacks

• Felled seams throughout Hanger loop
• One-washed - no shrinkage expected
• Kai is wearing size Large, is 186 cm tall and weighs 85 kg
• Made in Japan

Size Guide

Measurements are in centimeters and specific to the product displayed on this page. The best way to determine your size is to measure a similar item that fits you well using the method shown under "How we Measure" and compare with the size chart. Note that items of the same size can vary slightly. If a specific dimension (for example, arm length) is important to you, please ask us to check this by adding a note to your order.

Kai is wearing size Large, is 186 cm tall and weighs 85 kg

Materials & Care

100% cotton

One-washed - no shrinkage expected

Please see our Washing and Care instructions.