IHM-53-ODG - FW26 - 12oz Whipcord Lightweight N1 Deck Jacket - Olive Drab Green

Drawing inspiration from classic 1940s U.S. Navy deck jackets, this lighter version of the N-1 replaces the traditional thick alpaca wool insulation and quilted sleeves with a significantly lighter, weather-resistant lining made of Japanese Ventile cotton. This gives the jacket a slimmer silhouette, enhances breathability, and provides added protection against wind and rain.

For the autumn/winter 2026 season, Iron Heart uses a reactive-dyed fabric, the same material found in the wool-lined versions. The jacket is finished with a corduroy-lined collar that contrasts with the whipcord outer shell. The result is a jacket that blends classic N-1 styling with an ideal weight for transitional weather.

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• 12oz Japanese Whipcord

• Lightweight N1 deck jacket
• 12oz Japanese whipcord
• 100% cotton
• Reactive dyed warp and weft - no colour loss expected
• Water-resistant 6.2oz Japanese Ventile cotton lining
• Tonal stitching
• Two-way YKK zipper (lighter weight than standard N1)
• 14 wale sulphur-dyed corduroy lined collar, cuffs and pockets - 85% cotton / 15% polyester
• D-stitch pockets with snap fastenings
• Snap fastening interior “gun” pocket
• Buttoned cinches at hem and cuffs
• Paracord drawstring at hem fitted as standard

• Underarm vent hole rings

• Single and double needle construction
• One washed - little to no shrinkage expected
• Neal is wearing a size Large, is 184 cm tall and weighs 76 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.

Neal is wearing a size Large, is 184 cm tall and weighs 76 kg

Materials & Care

100% cotton

One washed - little to no shrinkage expected

Please see our Washing and Care instructions.