OD+SJ "Yoroi" Heavyweight Rope Dyed Indigo Flannel Shirt

• Limited production run of 96 pieces
• 100% Cotton
• Proprietary OD+SJ Indigo/Red Check fabric
• One Wash
  
• Rope-dyed Indigo yarns
• Slim fit silhouette
• Indigo-dyed nut buttons
• Side gussets with chainstitch runoff
• Work Shirt details
• Reinforced elbow panels
• Samurai Union Ticket

A follow-up to our first flannel collaboration with Samurai Jeans, the OD+SJ “Yoroi” Heavyweight Rope Dyed Indigo Flannel Shirt places the focus firmly on rope-dyed indigo while drawing inspiration from traditional Japanese armor.

The name “Yoroi” (鎧) refers to samurai armor, often combining deep indigo tones with bold red accents. Indigo represented practicality and protection, while red symbolized strength and presence on the battlefield. This contrast forms the foundation of the shirt’s custom check pattern, where indigo dominates and red cuts through for a sharp, balanced composition.

Woven in Nishiwaki, Hyogo, Japan’s historic shirting region, the fabric was developed through multiple rounds of sampling with the Samurai team to achieve the final color and weight. The result is a heavyweight flannel built from rope-dyed indigo yarns, designed to fade and evolve with wear.

Samurai’s signature attention to detail carries throughout. Indigo-dyed nut buttons will develop patina over time, while reinforced elbow panels and triple-needle chainstitch construction ensure long-term durability.

*Model is pictured wearing a size XXL. He weighs 80kg (176 pounds) and is 180cm (5’11”) tall.

**We conducted a shrinkage test with a size XXL, using a machine wash and dry cycle. The XXL shrank -1" at the chest, -0.7" at the shoulders, -0.5" at the center back, -0.3" at the sleeves and -0.1" at the cuffs.