Yoroi Shitagi
(Under Armor Shirt)

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SKU: CL-YS1

Original price was: $99.99.Current price is: $79.95. $79.95

  • Click the ? for Option / Sizing Details

    Select from our selection of Japanese cotton linen fabrics and pattern material.
    (limited supply of patterned linen, patterns might change without notice. We will try to email you options if this happens.)

    Select from our selection of Japanese cotton linen fabrics and pattern material.
    (limited supply of patterned linen, patterns might change without notice. We will try to email you options if this happens.)

    Select the fringe edging color.

    Select between Modern or Traditional printing or Embroidered. 
    Modern Vinyl Heat Transfer PrintTraditional Print Option Example

    Select the COLOR(S) of the MON you would like.  Write your Multi-Color preference in the Order Notes or reply to your Email Confirmation with your Custom Mon / Requests.

    Select the COLOR of the MON you would like.

    Add a mon to the CHEST of your Yoroi Shitagi

    Add a mon to the BACK of your Yoroi Shitagi







    Select to receive a Digital Picture Mockup (Simulation) of your order. We will email you a Mockup for your review before we start crafting your item. You can Approve or request Changes before we start crafting your item.


    Traditional clothing fits a little large, it is best to select the size closest to your actual size.
    (Review product images for more details.)


    (Custom measurements you provide are for reference only. Alterations may be made for a proper traditional fit as deemed necessary by our seamstress.)


  • Measure the distance from inseam to inseam of the shoulder on a comfortable fitting, non-stretch shirt or your desired width.
    Kimono Sizing Chart

    Holding your arm straight out, measure from the edge of your shoulder (shirt seam) towards your finger tips. Measure to the desired length of your sleeve.
    PLEASE NOTE: A long kimono sleeve would often reach the center of your palm. 
    Kimono Sizing Chart

    Measure from the top of your arm, straight down to the desired length you would like your sleeve to hang.
    PLEASE NOTE: You are measuring width and NOT circumference. 
    Kimono Sizing Chart

    Under your armpits, measure the circumference at the widest part of your chest.
    Kimono Sizing Chart

    Measure the circumference around your waist.
    Kimono Sizing Chart

    Measure from the back of the neck, level with the shoulder, down the spine 20 cm below your waist (belt line) or the length you wish.
    PLEASE NOTE: Follow the contour of your body. 
    Kimono Sizing Chart

    Please tell us your Height so we can better reference your sizing.

Arm Yourself in Authentic Samurai Comfort and Protection!

The Yoroi Shitagi, also known as Gusoku Shitagi, is an essential traditional Japanese undershirt or jacket historically worn by samurai warriors beneath their armor. Originating in feudal Japan, this layered garment is specifically designed to enhance both comfort and protection during battle. With its samurai kimono-style design, the Yoroi Shitagi traditionally ties just below the throat, secured by a thin obi (belt) attached at the waist, providing a snug yet flexible fit beneath armor.

Historically significant, the samurai ceremonially donned their Yoroi Shitagi by inserting their left arm first, then their right, symbolizing readiness for battle. The garment was then secured at the neck and finally tied with the attached obi, traditionally from back to front, completing the preparation ritual. As the second garment worn after the fundoshi (loincloth), the Yoroi Shitagi became indispensable for both ceremonial and practical purposes.

Typically crafted with a combination of durable linen on one side and luxurious silk on the other, this reversible garment provides both ease of maintenance and optimal comfort. The silk side could be worn inward during combat, offering smoothness and reducing armor chafing, while the robust linen side faced outward, facilitating easy cleaning. Additionally, the layers of fabric functioned as an effective gambeson (arming coat), providing critical extra protection by reducing the potential damage from blades or projectile weapons that might penetrate the armor.

At Iron Mountain Armory, we proudly reproduce our Yoroi Shitagi following authentic traditional patterns, using premium materials to replicate the quality garments from the late Sengoku to late Edo era. Our unique reversible design allows you to display the elegant art silk pattern outwardly after removing your armor, making it ideal for post-battle or ceremonial presentations. Custom sizing and optional materials provide a personalized and historically accurate garment, ideal for martial artists, reenactors, cosplay enthusiasts, and samurai aficionados alike.

Our meticulously crafted samurai clothing and accessories have garnered international recognition, featured prominently in acclaimed productions, including the Netflix and Smithsonian Channel docudrama, “Age of Samurai: Battle for Japan.”

Key Features & Benefits:

  • Traditional Samurai Design: Historically accurate under-armor kimono.
  • Custom Tailoring: Precise sizing for optimal fit and comfort.
  • Quality Materials: Optional linen and silk blend, reversible for practical versatility.
  • Enhanced Protection: Functions as additional padding under armor.
  • Versatile Use: Ideal for martial arts, reenactment, cosplay, and traditional attire.

Ordering Tips: Custom measurements provided are guidelines; minor alterations may be made by our seamstress for optimal traditional fit.

Product Crafting Time: Please allow our skilled seamstress at Iron Mountain Armory at least 1 week for processing and carefully craft your Yoroi Shitagi. Crafting times provided are averages and may vary based on current demand and previously placed orders.

Description

Arm Yourself in Authentic Samurai Comfort and Protection!

The Yoroi Shitagi, also known as Gusoku Shitagi, is an essential traditional Japanese undershirt or jacket historically worn by samurai warriors beneath their armor. Originating in feudal Japan, this layered garment is specifically designed to enhance both comfort and protection during battle. With its samurai kimono-style design, the Yoroi Shitagi traditionally ties just below the throat, secured by a thin obi (belt) attached at the waist, providing a snug yet flexible fit beneath armor.

Historically significant, the samurai ceremonially donned their Yoroi Shitagi by inserting their left arm first, then their right, symbolizing readiness for battle. The garment was then secured at the neck and finally tied with the attached obi, traditionally from back to front, completing the preparation ritual. As the second garment worn after the fundoshi (loincloth), the Yoroi Shitagi became indispensable for both ceremonial and practical purposes.

Typically crafted with a combination of durable linen on one side and luxurious silk on the other, this reversible garment provides both ease of maintenance and optimal comfort. The silk side could be worn inward during combat, offering smoothness and reducing armor chafing, while the robust linen side faced outward, facilitating easy cleaning. Additionally, the layers of fabric functioned as an effective gambeson (arming coat), providing critical extra protection by reducing the potential damage from blades or projectile weapons that might penetrate the armor.

At Iron Mountain Armory, we proudly reproduce our Yoroi Shitagi following authentic traditional patterns, using premium materials to replicate the quality garments from the late Sengoku to late Edo era. Our unique reversible design allows you to display the elegant art silk pattern outwardly after removing your armor, making it ideal for post-battle or ceremonial presentations. Custom sizing and optional materials provide a personalized and historically accurate garment, ideal for martial artists, reenactors, cosplay enthusiasts, and samurai aficionados alike.

Our meticulously crafted samurai clothing and accessories have garnered international recognition, featured prominently in acclaimed productions, including the Netflix and Smithsonian Channel docudrama, “Age of Samurai: Battle for Japan.”

Key Features & Benefits:

  • Traditional Samurai Design: Historically accurate under-armor kimono.
  • Custom Tailoring: Precise sizing for optimal fit and comfort.
  • Quality Materials: Optional linen and silk blend, reversible for practical versatility.
  • Enhanced Protection: Functions as additional padding under armor.
  • Versatile Use: Ideal for martial arts, reenactment, cosplay, and traditional attire.

Ordering Tips: Custom measurements provided are guidelines; minor alterations may be made by our seamstress for optimal traditional fit.

Product Crafting Time: Please allow our skilled seamstress at Iron Mountain Armory at least 1 week for processing and carefully craft your Yoroi Shitagi. Crafting times provided are averages and may vary based on current demand and previously placed orders.

Additional information

Weight 0.75 kg
Dimensions 18 × 18 × 8 cm

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(Under Armor Shirt)

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