ONI Kase 鬼枷染

Kase employs a new innovation that combines natural indigo kase-zome (hank dyeing) with rope-dyed core techniques, creating a rich, three-dimensional texture and uneven color depth. This is especially rare due to its fading ability, while all other natural indigo hank dyed denim remains unchanged in color through wear.

This 16oz fabric created by master Oishi-san at ONI delivers natural fading over time due to its slubby, ultra low-tension weave. It stands out for blending historical dyeing methods with modern denim innovation. 

What is Hank Dye?

Hank dyeing dyes cotton yarn in loose skeins (hanks) rather than in long, tensioned ropes. The yarn is bundled, tied, and repeatedly immersed in indigo vats, allowing dye to penetrate slowly and unevenly.

Unlike modern rope dyeing—which prioritizes speed, consistency, and shallow dye penetration—hank dyeing accepts variability as a feature, not a flaw.

ONI 822 fit

The ONI 822 is a newly developed wide, subtly tapered silhouette built upon the foundation of the 222 fit. Overall, it offers a very relaxed cut that comfortably accommodates a wide range of body types.

Wide-leg jeans often create a flared hem appearance, but the 822 is carefully shaped with a gentle taper toward the hem. Combined with a slightly shorter length, this results in a cleaner, more streamlined wide-leg look. The outcome is a rare silhouette best described as “extremely wide yet straight,” delivering strong presence without feeling sloppy.

Like the 200 & 222 fit, the 822 removes the traditional back pocket arcuate stitching and instead features ONI’s classic woven tab detail. This is a highly distinctive and uncommon fit in today’s market, and without question, one of the most interesting designs we’ve come across.

How much does ONI 'Secret Denim' stretch in the waist?

Typically 1.5 - 2 inch (~ 4-5cm) in waist circumference. Basically you can expect them to stretch at least half size more than other Japanese jeans brands. If you have a tummy / belly, go for a safe size. If you’re lean in the stomach, go for a more fitted one.

ONI jeans general size recommendation

Go up at least 2 sizes from major US brands. Usually the same or go down 1 size from other Japanese brands.

Detail

• 16 oz unsanforized Japanese selvedge denim
• One-wash for us, hence no shrinkage
• 100% cotton
• Indigo x white
• Kabuki selvedge ID
• High rise
• Super wide straight
  
• Wide leg opening
  
• Slight tapered leg 
• Slightly shorter inseam
• ONI branded doughnut buttons 
  
• Hidden rivet pockets
  
• Raised belt loops
  
• Veg-tanned leather patch
  
• Made in Japan
  
• Super limited production

*Both 822 & 200 are only produced without pocket arcuate.

Size Chart