01507L-ISHIKAWADAI - 15oz Selvedge Denim Jacket - Type I
ONI’s Ishikawadai denim represents one of the most distinctive fabrics in modern Japanese denim. The yarn is spun on a vintage Ishikawadai ring-spinning machine built in 1953 by Ishikawadai Seisakujo, a piece of equipment that runs at roughly one third the speed of modern machinery. That slow, deliberate process creates irregular, textured yarn with a raw, uneven character that modern high-speed spinning simply can’t replicate.
Those yarns are then dyed in ONI’s signature green-cast “secret” indigo, a shade that interacts beautifully with the uneven texture created by the Ishikawadai process. The result is denim that feels rugged and organic from the first wear, with a vintage personality that only deepens as the indigo fades. At 15oz, the fabric hits a sweet spot for everyday wear, offering a lighter weight that still carries ONI’s signature low-tension weave and substantial hand.
This Type I jacket follows the classic mid-century blueprint while incorporating a few thoughtful details. A lower left patch pocket adds practical storage, while the traditional cinch-back anchors the jacket firmly in its vintage roots. Combined with ONI’s uniquely textured Ishikawadai denim, it creates a jacket that feels both historically grounded and unmistakably modern.
- 15oz Selvedge Denim
- 100% Cotton
- Tempi One-Wash Treatment
- Copper Hardware
- Type I Patch Pocket
- Cinch Back
- Curtain Pleats
- Box Tacks
- Dual-tone Contrast Stitching
- Vegetable Tanned Leather Patch
- Made in Japan
| Size | Chest | Shoulder Width | Length | Waist Width | Sleeve Length |
|---|---|---|---|---|---|
| 38 (M) | 20.5 | 16.5 | 24.4 | 18.9 | 23.2 |
| 40 (L) | 21.7 | 17.3 | 25.2 | 19.7 | 24.0 |
| 42 (XL) | 22.8 | 18.1 | 25.6 | 20.5 | 24.8 |
| 44 (XXL) | 23.6 | 18.9 | 26.0 | 21.3 | 25.6 |
A variance of +/-.5" is within tolerance.
Fit Notes: Shop owner Tommy is wearing a size 42 in this jacket. To fit the roomier look of the pants, he wanted a size larger than he normally wears. As you can see, these fit a little smaller than the other two. This is how a classic type I is supposed to fit. So we are always going to recommend sizing up at least once in these. Tommy is 5'9," 165lbs, with a 41" chest.
Original: $345.00
-65%$345.00
$120.75
Description
ONI’s Ishikawadai denim represents one of the most distinctive fabrics in modern Japanese denim. The yarn is spun on a vintage Ishikawadai ring-spinning machine built in 1953 by Ishikawadai Seisakujo, a piece of equipment that runs at roughly one third the speed of modern machinery. That slow, deliberate process creates irregular, textured yarn with a raw, uneven character that modern high-speed spinning simply can’t replicate.
Those yarns are then dyed in ONI’s signature green-cast “secret” indigo, a shade that interacts beautifully with the uneven texture created by the Ishikawadai process. The result is denim that feels rugged and organic from the first wear, with a vintage personality that only deepens as the indigo fades. At 15oz, the fabric hits a sweet spot for everyday wear, offering a lighter weight that still carries ONI’s signature low-tension weave and substantial hand.
This Type I jacket follows the classic mid-century blueprint while incorporating a few thoughtful details. A lower left patch pocket adds practical storage, while the traditional cinch-back anchors the jacket firmly in its vintage roots. Combined with ONI’s uniquely textured Ishikawadai denim, it creates a jacket that feels both historically grounded and unmistakably modern.
- 15oz Selvedge Denim
- 100% Cotton
- Tempi One-Wash Treatment
- Copper Hardware
- Type I Patch Pocket
- Cinch Back
- Curtain Pleats
- Box Tacks
- Dual-tone Contrast Stitching
- Vegetable Tanned Leather Patch
- Made in Japan
| Size | Chest | Shoulder Width | Length | Waist Width | Sleeve Length |
|---|---|---|---|---|---|
| 38 (M) | 20.5 | 16.5 | 24.4 | 18.9 | 23.2 |
| 40 (L) | 21.7 | 17.3 | 25.2 | 19.7 | 24.0 |
| 42 (XL) | 22.8 | 18.1 | 25.6 | 20.5 | 24.8 |
| 44 (XXL) | 23.6 | 18.9 | 26.0 | 21.3 | 25.6 |
A variance of +/-.5" is within tolerance.
Fit Notes: Shop owner Tommy is wearing a size 42 in this jacket. To fit the roomier look of the pants, he wanted a size larger than he normally wears. As you can see, these fit a little smaller than the other two. This is how a classic type I is supposed to fit. So we are always going to recommend sizing up at least once in these. Tommy is 5'9," 165lbs, with a 41" chest.
