BIG JOHN XXXX-EXTRA Coverall Jacket represents the highest level of Japanese craftsmanship — a workwear masterpiece proudly made in Japan.
This long-awaited addition to the “XXXX-EXTRA” series was created with the idea of combining traditional workwear spirit with modern comfort and refined design.
Featuring a clean three-pocket coverall style, this jacket highlights the deep, rich tone of natural indigo. The silhouette has been carefully updated to fit today’s lifestyle while maintaining the authentic vintage appeal.
The 12oz selvedge denim is woven from a unique blend of five types of organic cotton sourced from five continents and spun into Structure Yarn by Taisho Spinning. The yarns are rope-dyed 16 times in 100% natural indigo by Sakamoto Denim, resulting in a deep, pure blue that ages beautifully over time.
Woven on vintage shuttle looms by Shinya Textile, the fabric has a natural uneven texture and a soft hand feel. Every detail — from the iron donut buttons engraved with “BIG JOHN 1940” to the original leather patch and rayon label — has been exclusively designed for the EXTRA line.
This is not just a coverall. It’s a symbol of BIG JOHN’s dedication to authenticity, quality, and timeless Japanese craftsmanship.
- 12.0oz natural indigo selvedge denim (100% cotton)
- Indigo rope-dyed 16 times using 100% natural indigo (Sakamoto Denim)
- Structure Yarn spun by Taisho Spinning from: Turkey, Peru (Aspero), Texas (Supima), India, and Tanzania organic cotton
- Includes 5% OCS-certified recycled organic cotton
- Woven on vintage shuttle looms by Shinya Textile
- Low-tension weaving for natural texture
- Original indigo selvedge with natural indigo threads
- Iron donut buttons (engraved “BIG JOHN★1940★”)
- Original vegetable-tanned leather patch
- Original rayon label
- Made in Japan
Care Instructions:
Expect shrinkage, twisting, and fading due to washing.
Avoid tumble drying.
Wash separately; color transfer may occur.
Refer to care label before washing.
Do not use chlorine bleach.
我們很榮幸能在全球範圍內對於超過NT$4,200的訂單提供免郵服務。
我們使用世界級的快遞公司如EMS, FedEx和DHL來運送產品。
我們努力在收到訂單後2 - 3個工作日內從倉庫發貨，通常訂單到達大多數東亞國家和北美需要2 - 3天，世界其他地區需要4 - 7天。
一旦商品離開我們的店面或倉庫，產生的費用，例如关税，應屬於顧客支付。每個國家海關政策不同，顧客是唯一的商品負責人。也因為你是商品的負責人，所以在結帳時，你可以選擇你的郵遞文件。更改郵遞文件是個人的選擇，所以你需要為你提供的任何資訊承擔全部責任。
BIG JOHN XXXX-EXTRA Coverall Jacket represents the highest level of Japanese craftsmanship — a workwear masterpiece proudly made in Japan.
This long-awaited addition to the “XXXX-EXTRA” series was created with the idea of combining traditional workwear spirit with modern comfort and refined design.
Featuring a clean three-pocket coverall style, this jacket highlights the deep, rich tone of natural indigo. The silhouette has been carefully updated to fit today’s lifestyle while maintaining the authentic vintage appeal.
The 12oz selvedge denim is woven from a unique blend of five types of organic cotton sourced from five continents and spun into Structure Yarn by Taisho Spinning. The yarns are rope-dyed 16 times in 100% natural indigo by Sakamoto Denim, resulting in a deep, pure blue that ages beautifully over time.
Woven on vintage shuttle looms by Shinya Textile, the fabric has a natural uneven texture and a soft hand feel. Every detail — from the iron donut buttons engraved with “BIG JOHN 1940” to the original leather patch and rayon label — has been exclusively designed for the EXTRA line.
This is not just a coverall. It’s a symbol of BIG JOHN’s dedication to authenticity, quality, and timeless Japanese craftsmanship.
- 12.0oz natural indigo selvedge denim (100% cotton)
- Indigo rope-dyed 16 times using 100% natural indigo (Sakamoto Denim)
- Structure Yarn spun by Taisho Spinning from: Turkey, Peru (Aspero), Texas (Supima), India, and Tanzania organic cotton
- Includes 5% OCS-certified recycled organic cotton
- Woven on vintage shuttle looms by Shinya Textile
- Low-tension weaving for natural texture
- Original indigo selvedge with natural indigo threads
- Iron donut buttons (engraved “BIG JOHN★1940★”)
- Original vegetable-tanned leather patch
- Original rayon label
- Made in Japan
Care Instructions:
Expect shrinkage, twisting, and fading due to washing.
Avoid tumble drying.
Wash separately; color transfer may occur.
Refer to care label before washing.
Do not use chlorine bleach.
我們很榮幸能在全球範圍內對於超過NT$4,200的訂單提供免郵服務。
我們使用世界級的快遞公司如EMS, FedEx和DHL來運送產品。
我們努力在收到訂單後2 - 3個工作日內從倉庫發貨，通常訂單到達大多數東亞國家和北美需要2 - 3天，世界其他地區需要4 - 7天。
一旦商品離開我們的店面或倉庫，產生的費用，例如关税，應屬於顧客支付。每個國家海關政策不同，顧客是唯一的商品負責人。也因為你是商品的負責人，所以在結帳時，你可以選擇你的郵遞文件。更改郵遞文件是個人的選擇，所以你需要為你提供的任何資訊承擔全部責任。