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JB50 Ai Indigo Sorahikohime Distressed (Up to 36 inches)

JB50 Ai Indigo Sorahikohime Distressed (Up to 36 inches)

Regular price HK$6,595.00
Regular price Sale price HK$6,595.00

・Dyed with a mix of natural Ai Indigo and regular indigo
・Straight cut
・Special Ai-dyed sashiko patch
・45R's signature cut

"JB" stands for Japan Blue, a tribute to the art of indigo. The yarn used in these jeans has been meticulously hand-dyed with a balanced mix of indigo and natural Ai, comprising 50% of each. This unique dye comes from a precious batch of deadstock JB50, preserved over two decades and now reintroduced for these jeans.

These unisex straight-cut Sorahikohime jeans offer a solid rise and a comfortably snug fit around the hips. The combined hues of Ai and indigo, deeply penetrated into the yarn through skein dyeing, are designed to blend uniquely as they age, creating a rich, evolving color story. Woven on power looms, the fabric features selvedge on just one edge—a rare characteristic underscoring its exclusivity. This fabric, impossible to replicate in exactly the same way again, makes each pair a unique piece of wearable art.

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JB50 Ai Indigo Sorahikohime Distressed (Up to 36 inches)

JB50 Ai Indigo Sorahikohime Distressed (Up to 36 inches)

Product Number
60960343
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JB50 Ai Indigo Sorahikohime Distressed (Up to 36 inches)

Regular price HK$6,595.00
Regular price Sale price HK$6,595.00
Sale
Color
79 - Natural Ai Indigo
Size
Size

How Does Natural 藍 Ai Indigo Denim Age?

Top: Regular Indigo Dye | Bottom: Natural 藍 Ai Indigo Dye

Both pairs are 45R denim, aged over five years, each showcasing indigo blue's beauty. Regular indigo dye presents the "Nakaziro" effect, where the warp's fading indigo exposes the weft's white yarns over time, transitioning the color to a bluish white. In contrast, Natural Ai Indigo dye fades slowly, maintaining a deep indigo hue even with prolonged wear.

Left : Natural 藍 Ai Indigo Dye | Right : Regular Indigo Dye
Surface of Aged Natural 藍 Ai Indigo Dye Jeans
Surface of Aged Regular Indigo Dye Jeans

This unique aging, known as "Nakaziro," highlights the charm of rope-dyed indigo. As the warp threads lighten, the weft's white threads become visible.

100% natural Ai Indigo differs from regular indigo in that its dye particles are exceptionally fine, allowing the dye to penetrate deeply into the fibers. As a result, even as the denim ages, the weft threads that emerge also display the indigo color, continuously creating a deep blue hue.

Leaves of Persicaria tinctoria, the source of natural Ai Indigo dye
Fermenting and resting the leaves repeatedly to develop the dye
Natural Ai Indigo dye, over a year in the making.

Our natural Ai Indigo is derived from the Persicaria tinctoria plant, grown in Japan. The process involves planting the seeds, nurturing the plants, and harvesting them—followed by fermentation—a journey that takes between one to one and a half years to produce the dye itself. Discover More in Our Ai Indigo Jeans Journal.

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