Technical flat drawn to scale from the size chart.
JB0601
A high rise and roomy seat with a firm taper to a slim hem.
For a 32″ waist (our default: enter yours). Size 31’s waistband measures 32¼″, ¼″ over your waist. That’s within normal measuring variation, so it should sit right at your waist once it’s broken in.
- Maker’s fit name
- High Tapered
- Fabric
- Japan Blue selvedge
- Weight
- Not stated
- Maker
- Kojima, Okayama
- Shrinkage & finish
- Not stated by the source. Ask the seller whether the chart is raw or washed. Hemming and cuffing guide
Order size 31 for a 32″ waist, and check the seller’s own chart before you buy. Menjitsu may earn a commission when you buy through these links. It never changes your price or which jeans we chart.
Measured profile
at size 31- Rise
- mid
- Thigh
- regular
- Taper
- strong
- Opening
- narrow
| TAG | 28 | 29 | 30 | 31 | 32 | 33 | 34 | 36 | 38 |
|---|---|---|---|---|---|---|---|---|---|
| Waist | 29⅛ | 30⅜ | 31½ | 32¼ | 33⅛ | 34⅝ | 35⅜ | 37 | 38⅝ |
| Front rise | 10¼ | 10⅜ | 10⅝ | 10⅞ | 11 | 11¼ | 11⅝ | 12 | 12⅜ |
| Back rise | 14⅛ | 14⅜ | 14⅝ | 14¾ | 15 | 15⅛ | 15½ | 16 | 16⅜ |
| Thigh | 11¼ | 11⅜ | 11⅝ | 11¾ | 12¼ | 12⅝ | 13 | 13⅜ | 14⅛ |
| Knee | 8¼ | 8½ | 8⅝ | 8⅞ | 9 | 9¼ | 9⅞ | 9⅝ | 10¼ |
| Leg opening | 6¼ | 6½ | 6¾ | 6⅞ | 7⅛ | 7¼ | 7½ | 7⅝ | 7⅞ |
| Inseam | 35¼ | 35¼ | 35¼ | 35¼ | 35¼ | 35¼ | 35¼ | 35¼ | 35¼ |
Inches; thigh, knee and opening are measured flat. Transcribed from Okayama Denim (published in centimetres). Retailers measure differently; confirm with the seller before you buy.
Compare with another model
The Japan Blue Jeans J301 is shorter in the leg (−3″), narrower at the knee (−⅜″) and smaller in the waist (−⅜″). Relaxed Tapered vs Tapered.
How the J301 would fit
- Falls straighter below the knee, more of a column.
- Shorter in the leg: less cuffing needed.
| JB0601size 31 | J301size 31 | Diff. | |
|---|---|---|---|
| Waist | 32¼ | 31⅞ | −⅜″ |
| Front rise | 10⅞ | 10⅝ | −¼″ |
| Back rise | 14¾ | 15⅜ | +⅝″ |
| Thigh | 11¾ | 12 | +¼″ |
| Knee | 8⅞ | 8½ | −⅜″ |
| Leg opening | 6⅞ | 6⅞ | same |
| Inseam | 35¼ | 32¼ | −3″ |
Diff. is the J301 minus the JB0601. Clear
Compare with jeans you own
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Cut close to the JB0601
The nearest matches by rise, thigh, knee and opening at size 31, from any maker.
J301
絞Tapered- Rise
- 10⅝″
- Thigh
- 12″
- Knee
- 8½″
- Hem
- 6⅞″
SD-108
楽Relaxed Tapered- Rise
- 10⅜″
- Thigh
- 11¾″
- Knee
- 8½″
- Hem
- 7⅛″
Valencia 714
絞Tapered- Rise
- 11½″
- Thigh
- 12½″
- Knee
- 8¾″
- Hem
- 7⅛″
546
細Slim Straight- Rise
- 10½″
- Thigh
- 11¾″
- Knee
- 8¼″
- Hem
- 7″