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O-Yoroi DO
Taisho Class

Original price was: $2,349.99.Current price is: $1,999.85. $1,999.85

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OYD-1T

  • Each option has a ? next to it. Click or Tap the ? to show a summarized explanation of the option.
    For full explanations please click the "ORDER OPTIONS EXPLAINED" link at the bottom left of the page.

    Select the Color & Finish of your Do (cuirass).
    Samurai Chest Do Color & Finish Option by Iron Mountain Armory



    Select to change the Kusazuri (Skirt) Color / Finish.

    Kusazuri (Skirt) Color / Finish Options


    (If left blank it will match the MAIN ARMOR COLOR option selected above.)


    Select the LACE (Odoshi) Color you would like for your armor. 
    Odoshi Lace for Samurai Armor by Iron Mountain Armory
    (Click through the product images to see different Lace Colors.)

    Select to Change or Add a BOTTOM lace to your Do.
    Bottom Lace (Odoshi) Color Option by Iron Mountain Armory

    Image for reference only




    Select to Change or Add a Mimi-Ito (Border Lace) to your Do / Kusazuri (Armored Skirt).
    Mimi-Ito Color for Chest / Kusazuri Option by Iron Mountain Armory

    (Image for reference only)




    Select which leather or egawa you would like used on your o-yoroi.
    O-Yoroi Chest Leather (Egawa) Options by Iron Mountain Armory


    Select the TRIM (Kawa or Asa) you want used around the Leather areas of your armor.
    Kawa Fukurin by Iron Mountain Armory







    For Taisho class armor, we offer an Upgrade option. This option increase the thickness of the steel plating by .2mm, plus tempering! Your armor will be ever more durable, battle ready & a little heavier.








    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.



    Additional Options

    Select to add 1 or 2 Chest Rings (Saihai no kan & Tenugui no kan) to your Dō, used to display tassels or hold a saihai or gunbai.
    Do Chest Rings Saihai no kan & Tenugui no kan Custom Samurai Armor Options by Iron Mountain Armory

    (Select option from the perspective of wearing the armor)

    Add 1 or 2 WAIST RINGS (holding rings) to either side of your Dō (chest plate), used to hold bags, tie a weapon, Gunbai and/or your Sarashi in place.  We recommend adding both if you are training in your armor. 
    Wist Holding Rings Options for Custom Samurai Dō by Iron Mountain Armory
    (Select option from the perspective of wearing the armor)


    Ornamental Options


    Select to ADD Ornate Brass Fittings to the Front Only and/or Back of your Gashira or Kachi Do (if available)

    Aida & Kiusho Brass Kanamono by Iron Mountain Armory
    Image for reference only & may vary depending on armor class / model.

    This option is for adding a "Fukurin" or decorative metal trim over the edges of your dō.
    Fukurin (Decorative Trim) Options for Dō by Iron Mountain Armory

    Add a Clan or your own Custom mon to the Kyubi and/or Sendan-no-ita.


    Sendan No-Ita & Kyubi-No-Ita Mon Options by Iron Mountain Armory

    Add a Clan or your own Custom mon to the Kyubi and/or Sendan-no-ita.


    Sendan No-Ita & Kyubi-No-Ita Mon Options by Iron Mountain Armory


    Display Options

    Add a Display Stand and Box to your order

    Yoroi Bitsu and Stand

    The Sizing Options for our Gashira Armors. Some options that are not standard may entail extra costs.

    This option changes the girth size of your Dō (chest armor).  While inhaling deeply, have an assistant wrap the tape measure under your armpits around the largest part of your chest.  In the back, you want the tape measure to wrap across your shoulder blades. The tape measure should be snug, but not tight.


    Please Note: Sizing is for reference only and may not reflect the final product. Please read the FAQs for more details.


    Please Note: It is better to select 1 size larger to accommodate under clothing.

    This option is for the waist circumference of the Dō (chest armor).  5: Place a tape measure on your navel (belly button) and straight around your waist, finishing at your navel. The tape measure should be snug, but not tight.


    Please Note: Sizing is for REFERENCE ONLY and may not reflect the final product. Please read the FAQs for more details.


    Please Note: It is better to select 1 size larger to accommodate under clothing.

    Adjust the armor to your Height.  Standard sizing is 5' 8" (175 CM).  Select the option closest to your actual height.  If unsure, select 1 size smaller and enter your actual size in the order comments.

    Please select the option that is closest to your weight or next weight level greater, so our armorers can better fit your armor to your body size.

    The Accessory Options for our Samurai Dō's, some of which may incur additional charges. If you require further customization besides what is offered here, please contact us.

    Select between Standard Narrow or Large Wide Yoroi-Obi (padded belt) to be worn under your Do.

    Add a long cloth belt used to hold your dō firmly in place for a more comfortable with and to hold weapons and other accessories to your waist.
    Sarashi

    Select to add an Uwa-Obi (Outer Belt), used to hold your katana or other accessories.
    Uwa-Obi (Outer Belt) by Iron Mountain Armory

    Image for reference only




    Extra Customization Options


    Gashira (Officer):
    Expertly handmade with quality materials and good attention to detail.


    Crafting Time: 25 to 35 Days.


    Materials Used: Bowl style kabuto, steel construction, traditional brocade, hemp, quality cotton, brass, copper fittings with genuine leather & and some synthetic materials might be used. (materials may differ depending on model)


    Our “Gashira Class” yoroi are the next step up from our “Kachi Class.” Each suit is handcrafted by our experienced katchû-shi (armor smith) at the Iron Mountain Armory. Our craftsman will use quality materials and traditional crafting methods with some modern techniques, tools and advancements in design. Much like the Taisho Class, each suit has been heavily researched, and a lot of care is put into their historical accuracy. The principle difference between the Gashira-class and Taisho-class, is that the Gashira Class is crafted with the practical bowl-style kabuto (simulated laminate) and some other machine stamped parts. Gashira class also feature some small modern design enhancements (like adding grommets and spot welding) to make the armor more robust and easier to main. Our Gashira Class samurai armor is made specifically for collectors, exhibitions, re-enactors and martial artists, who want an authentic “Gendai” samurai suit of armor without the added expenses of the more traditional design and hand crafting methods found in our Taisho class.


    The Gashira class features a more traditional Gendai design over kachi class and include features such as, real animal hair, genuine leather, removable or interchangeable nose, brass fittings, shoulder padding with kikko (armor plating), traditional butted mail, opposable thumbs, leg / waist support on haidate, extra materials, fittings, riveting, grommets, extra lacing options and included armor storage / display box (yoroi bitsu) with stand. The attention to detail is a big step up from Kachi class, however, due to handcrafting of many parts there might be some blemishes that pass through our QC process. Although we work to avoid and fix blemishes / issues, through the QC process, they are a natural occurrence of handcrafting. Taisho class suits will have fewer (if any) of these blemishes that occur due to high standards and level of detail when crafting and review.




    Advanced Options for our Gashira Armors. These are optional, and come with additional costs. These Options will override the MAIN PAINT option for ONLY the parts selected here.

    This option offers to make your kuzazuri (skirt plate) detachable / interchangeable.  Commonly used in the past for fast repair / replacement of the kuzazuri, or removable for fast and quiet movement of troops. Kusazuri Options

    Select the Color & Finish your Kusazuri (Gessan) Bottom Plates.
    Kusazuri (Gessan) Bottom Plate Option by Iron Mountain Armory

    Select the COLOR of the VERTICAL / SIDE LACE of your Sode.

    Sode Vertical / Side Lace Options Custom Samurai Armor

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Description

O-Yoroi or “Great Armor” is a suit of armor with a “boxed shaped” DO (chest armor) design worn between the 11th and early 14th century.  It gained its popularity during the Genpei War. The base of the O-Yoroi DO design is “U” shaped and closes with a waidate (side plate) crafted from iron or leather scale plates. The waidate tied under the right armpit, closing the DO, making an armored box around the samurai’s torso.  The upper legs are protected by an armored skirt called kusazuri, which is attached to the bottom of the chest plates.

The O-Yoroi took nearly a year to craft and typically cost the average salary of a high-ranking samurai (roughly $55,000 USD in modern times).  Because of this time and cost, the o-yoroi was a prestigious armor set worn only by wealthy Daimyo and their high-ranking samurai generals.  The material, color and details would often represent the clan in which the samurai belonged or had allegiance to.  It was crafted primarily of hon kozane, which where individual iron, sometimes leather scale plates, or in some cases a mixture of both iron and leather scales.  The scales where layered in clay and urushi (natural lacquer), then laced with silk, cotton and/or hemp odoshi (braiding). This would create a strong yet flexible suit of armor.

The O-Yoroi was designed as an armor set worn by horse mounted, samurai archers. The box shaped design would allow for the bulk of the weight to rest mainly on the saddle.  The slightly rounded chest made for an easy draw of the yumi (tall bow). To help with the release of the string, a layer of leather called “tsuru bashiri gawa” was used to cover the front of the chest to prevent the bow string from snagging on the ridges of the scales.  The o-yoroi DO featured kyubi and sendan-no-ita (armpit protectors) to help protect under the arms from strikes while stretching the arms when drawing the bow.  Because of these same design features, the o-yoroi was less flexible and more cumbersome to fight in while on foot.

After the first Mongolian invasion of 1274, the samurai adapted new infantry tactics and quickly learned that they needed armor which was more versatile.  Although the O-Yoroi was used into the 15th century it fell out of favor around the early to mid-14th century.  The O-Yoroi would pick up in popularity again in the mid-edo era. It would be worn in honor of ancient times and/or would be donated to local shrines in honor of ancestors.  The O-Yoroi will always be an iconic symbol of the ancient samurai and a proud part of the Samurai’s history.

Features: Taisho Class quality.

  • Full sized and fully functional.
  • Variation of paint, art silk odoshi colors and traditional features.
  • Includes display box and stand.
Our skilled katchû-shi (armorers) at the Iron Mountain Armory will need at least 4 to 6 weeks, depending on options selected, and other scheduled orders, for the custom handcrafting of your samurai armor set.
For more information, please review our Order Options Explained, Glossary Terms or FAQ Pages. You can also Contact Us directly. We are always happy to be of service.

Additional information

Weight 8.5 kg
Dimensions 51 × 51 × 61 cm

1 review for O-Yoroi DO
Taisho Class

1-1 of 1 review
  1. I can personally say that not only is this well worth the money it is a true credit to the craftsmanship of the Taisho class of armour that Iron Mountain Armoury offer. I am extremely happy with my Dou. It now has a special place in my collection.

    (1) (1)
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