Kojima, Okayama ジャパンブルージーンズ

Japan Blue Jeans jeans: size charts & fit guide

Sister label to Momotaro, built around the mill's own selvedge fabrics.

Does Japan Blue Jeans run true to size?

Going by the published charts, Japan Blue Jeans runs large. For a 32″ waist we’d pick a tag 31 in 4 of 8 models, a size down from your waist. That aims for a waistband at your waist after the first soak: selvedge gives about an inch with wear.

Your waist	Tag we’d pick	In
30″ (76 cm)	29	4 of 8 models
32″ (81 cm)	31	4 of 8 models
34″ (86 cm)	33	5 of 8 models
36″ (91 cm)	34	6 of 8 models

Waists measured around your body where your jeans sit. Raw, unsanforized charts are adjusted for their first soak. Each model below shows its own pick for your waist.

Japan Blue Jeans size chart at a glance

Units

in cm

Measurements in the size that fits a 32″ waist. Open a model for its full chart in every size.

Model	Fit	Size	Waist	Front rise	Thigh	Knee	Opening	Fabric
J501	Wide	31	32″	12¾″	13¾″	10″	8½″	12.5–14.8
JMJE1300	Wide	30	31½″	11¾″	11⅞″	9½″	8⅝″	12
J404	Straight	30	31⅞″	10⅞″	12⅝″	9½″	7⅝″	12.5
JMJE1102	Straight	30	31½″	11″	11⅛″	9½″	7½″	16
JB0601	Relaxed Tapered	31	32¼″	10⅞″	11¾″	8⅞″	6⅞″
J301	Tapered	31	31⅞″	10⅝″	12″	8½″	6⅞″	14.8
J201	Slim Tapered	31	32¼″	11″	11¼″	7⅞″	6¼″	14.8
J314	Slim Tapered	32	32½″	10½″	11⅝″	8¼″	6⅞″	14