Claessen™ Blue "Planetary Tears Blue" Selvedge Denim Wool-Blend Lined Cruiser Jacket

Claessen™ Blue "Planetary Tears Blue" Series

The Claessen™ Blue "Planetary Tears Blue" series is part of the MMC Quality Vintage sub-line.

Developed in collaboration with Chloris Bio-Dye Laboratory in the United States, this fabric is the world’s first bio-based indigo-dyed selvedge denim, designed with a focus on safety and sustainability.

Core to this series is its commitment to zero toxicity, zero carbon footprint, and full biodegradability. The molecular structure of Claessen Blue differs fundamentally from both plant-derived and synthetic indigo.

Rigorous light-fastness testing has proven its exceptional resistance to yellowing and superior color stability.

Claessen Blue is produced through microbial cell factories—where specially cultured microorganisms metabolize the blue pigment—achieving truly biological dyeing.

The 100% natural purity of Claessen Blue delivers a completely new shade: a transparent, seawater-like blue, distinct from traditional reddish or purplish indigo tones.

Due to its lighter dye shade, higher resistance to light and ozone fading compared to conventional indigo, and a design philosophy centered on longevity and ecological responsibility, this denim develops subtle, low-contrast fading over time. As such, it is not recommended for traditional high-contrast “denim farming.”

Chloris™ Biodye

We extend our deep gratitude to the pioneering U.S.-based Chloris team—global leaders in bio-dye innovation.

Behind Claessen Blue, the world’s first commercially scalable bio-based blue dye, lies a century-spanning pursuit.
It began in 1890, when German scientist Henri Claessen discovered blue-pigmented microorganisms in Berlin’s River Spree.
In 1939, Dutch scientist Professor Elazari Volcani isolated and purified the blue pigment, followed by the groundbreaking determination of its molecular structure by German Professor Kuhn in 1965.

After more than a century of research, the Chloris team applied synthetic biology to successfully transfer blue pigment synthesis genes into microbial cell factories in 2012.
After five years of development, microbial synthesis of Claessen Blue was achieved in 2017, enabling its application in cotton dyeing.

To honor its original discoverer, the pigment was officially named Claessen™ Blue.
We see it as a gift from Earth’s rivers and have named this series “Planetary Tears Blue”—Tears of Mother Earth—the Claessen™ Blue "Planetary Tears Blue" Series.

• Main fabric: 15oz custom-woven bio-based blue-dyed selvedge denim (100% cotton, 100% Claessen™ Blue)
• Lining: 380gsm wool-blend felt (50% wool, 50% viscose)
• Trim: 11-wale 350gsm corduroy (100% cotton)
• Custom MBBCAR tack button and snap buttons
• Cropped jacket silhouette
• Leather patch
• Raw
• Dry clean only

Note: This jacket is made from a relatively sturdy fabric. We recommend choosing one size up for a more comfortable fit.

The fabric is dyed with 100% bio-based Claessen Blue™ dye and woven to a 6.5 × 6 yarn count specification.

It uses an unsanforized fine-slub construction, creating natural horizontal texture across the surface.

The weave is dense, giving the fabric a substantial and sturdy hand feel.

The bio-based blue-dyeing process gives the garment a distinctive seawater-blue tone overall.

The greige fabric undergoes finishing treatment to help stabilize shrinkage.

Please note that, as this concept and mass-production technique represent a first-of-its-kind global trial, slight shade variations may occur even within the same production batch due to fluctuations in electrical potential during the dyeing process.

Model A:5'11"/180cm & 161lbs/73kg,size L
Model B:5'10"/178cm & 143lbs/65kg,size M

• After the order has been paid, the warehouse needs 1-3 days to process your order. 
• During holidays and peak sales, your order processing may be delayed, but we will process and ship as soon as possible.
• Order changes and cancellations can only be made before shipment.

All international orders will be shipped out directly from our China-based studio via Yun Express, with packages potentially reaching most destination countries within the following timeframes:

Express Shipping(Yun Express): About 4-15 working days.