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This ISHIKAWADAI RG JACKET is a special denim jacket that revisits the moment when BIG JOHN first began making jeans in Japan.
S6953R (001R) ISHIKAWADAI RG JACKET
¥56,200
Sale price
¥56,200
Regular price
The origin of Japanese denim. ISHIKAWADAI yarn. A denim jacket that carries the story of BIG JOHN.
This ISHIKAWADAI RG JACKET is a special denim jacket that revisits the moment when BIG JOHN first began making jeans in Japan.
As part of the ISHIKAWADAI series, this jacket is built with a deep respect for Japanese denim history, pure Japanese craftsmanship, and the rugged beauty of authentic vintage workwear.
■ Fabric — 13oz denim made with African organic cotton
The fabric is a 13oz denim made with African organic cotton, offering a balanced weight that is sturdy, wearable, and ideal for long-term aging.
The yarn is spun using an old-style Ishikawadai spinning machine, creating an uneven, natural texture that gives the denim its raw and honest character.
Rather than feeling overly refined, the fabric has a powerful slub-like expression, allowing rich fading, seam puckering, and high-contrast aging to develop through wear.
■ Concept — Not selvedge by design
This jacket is intentionally made without selvedge denim.
Instead of simply chasing vintage details, BIG JOHN looked back to the early days of Japanese denim production and recreated the appearance of the denim that helped form the brand’s foundation.
It is a tribute to the time when BIG JOHN made Japan’s first jeans—a pure Japanese denim story rebuilt for today.
■ Details — Classic denim jacket construction
The design follows the timeless shape of a classic denim jacket, with flap chest pockets, front pleats, and a compact length that gives the jacket its authentic, rugged appearance.
Orange stitching stands out against the deep indigo fabric, while original buttons, a leather patch, and vintage-inspired branding details complete the historical look.
Every detail is simple, purposeful, and rooted in the language of classic denim.
■ Silhouette — Regular fit
The silhouette is a clean regular fit, designed to be worn true to size or layered over a shirt, sweatshirt, or light knit.
The shorter jacket length pairs naturally with jeans, chinos, work pants, or military trousers, making it easy to style as a true everyday denim jacket.
■ Aging — Built to become personal
With wear and washing, the 13oz indigo denim will soften, mold to the body, and reveal its unique texture over time.
The uneven yarns spun on the Ishikawadai machine bring out natural vertical fading and a deep vintage-like character.
This is not a jacket made to stay untouched. It is made to be worn, aged, and shaped by the life of the wearer.
■ Product Details
• Style: Denim jacket
• Product name: ISHIKAWADAI RG JACKET
• Product code: S6953R
• Color code: 001R
• Material: 100% cotton
• Fabric: 13oz denim made with African organic cotton
• Yarn: Spun on Ishikawadai spinning machine
• Construction: Non-selvedge denim
• Country of origin: Made in Japan
• Silhouette: Regular fit
■ Key Features
• BIG JOHN denim jacket inspired by the origin of Japanese jeans
• Part of the ISHIKAWADAI series
• 13oz denim made with African organic cotton
• Yarn spun on old-style Ishikawadai spinning machines
• Intentionally made without selvedge to recreate BIG JOHN’s early denim history
• Classic denim jacket design with flap chest pockets and front pleats
• Deep indigo fabric designed for natural fading and aging
• Regular fit for everyday wear and layering
• Made in Japan
■ Styling
Wear it with matching ISHIKAWADAI jeans for a full denim-on-denim set-up, or pair it with chinos, fatigue pants, or work trousers for a classic casual look.
The compact length and regular fit make it easy to layer over a T-shirt, chambray shirt, sweatshirt, or flannel shirt.
Simple, authentic, and deeply rooted in Japanese denim heritage, this is a denim jacket that becomes more powerful the more it is worn.
■ Size Guide (cm)
| Size | Length | Chest | Hem | Shoulder | Sleeve | Cuff |
|---|---|---|---|---|---|---|
| S | 57.0 | 97.0 | 97.0 | 43.5 | 61.0 | 12.4 |
| M | 59.0 | 102.0 | 102.0 | 45.5 | 62.0 | 13.0 |
| L | 61.0 | 107.0 | 107.0 | 47.5 | 63.0 | 13.6 |
| XL | 63.0 | 112.0 | 112.0 | 49.5 | 64.0 | 14.2 |
| XXL | 65.0 | 117.0 | 117.0 | 51.5 | 65.0 | 14.8 |
■ Size Guide (inches)
| Size | Length | Chest | Hem | Shoulder | Sleeve | Cuff |
|---|---|---|---|---|---|---|
| S | 22.4 | 38.2 | 38.2 | 17.1 | 24.0 | 4.9 |
| M | 23.2 | 40.2 | 40.2 | 17.9 | 24.4 | 5.1 |
| L | 24.0 | 42.1 | 42.1 | 18.7 | 24.8 | 5.4 |
| XL | 24.8 | 44.1 | 44.1 | 19.5 | 25.2 | 5.6 |
| XXL | 25.6 | 46.1 | 46.1 | 20.3 | 25.6 | 5.8 |
■ Notes
Measurements are taken flat. Slight variations may occur.
This product is dyed with indigo. Fading and color transfer may occur with wear and washing.
Please be careful of color transfer to light-colored garments, bags, furniture, and car seats.
Shrinkage may occur after washing.
Please avoid tumble drying.
Please check the care label before washing.
Do not use chlorine bleach.
- ISHIKAWADAI RG JACKET by BIG JOHN
- 13oz denim made with African organic cotton
- Yarn spun on Ishikawadai spinning machines
- Inspired by the origin of Japanese denim production
- Intentionally non-selvedge denim construction
- Classic regular-fit denim jacket
- Deep indigo fabric designed for authentic aging
- Made in Japan
Ishikawadai yarn.
Japanese denim heritage.
A BIG JOHN denim jacket built from the memory of Japan’s first jeans.