Oiled Whipcord N1 Deck Jacket - Navy

The N1 deck jacket was first issued to US Navy servicemen in the early 1940s. Much copied in the years since, this military classic has evolved to become a true style icon in its own right. The Iron Heart take on the N1 remains pretty true to those original jackets — “if it ain't broke, don't fix it” — constructed with a highly durable whipcord outer shell and a high-density lining blended from sheep and alpaca wool.



This is our oiled version of the N1, designed to improve water resistance. Due to the nature of whipcord and its resistance to absorption, the heavy oiling increases the fabric’s weight from our standard 12oz to approximately 14oz — making this the heftiest version of the N1 in our lineup.

As with last year’s model, we’re now using a more eco-friendly oiling process for our jackets. Before this, the oiling process contained fluorine, a compound whose usage can pose environmental risks. Now, a fluorine-free coating replaces this substance with a double layer of oil, achieving the same level of water repellency as before and resulting in a slightly waxier hand feel.

Of course, being an Iron Heart deck jacket, we’ve also given the original N1 design a few innovative upgrades — most notably a hidden chino interlining to enhance wind resistance and a heavy-duty two-way zipper concealed beneath the traditional buttoned storm placket. This creates a formidable winter jacket, seamlessly blending authentic WW2-era styling with modern performance and functionality.