Built from denim experience. Made to change stonewashing.
HMS was created by Baytech Sustainable Technologies, a family-led company combining decades of denim washing expertise with a new generation’s push for cleaner fashion production.
OUR STORY
HMS began with a simple question:
Can we keep the authentic abrasion of pumice without accepting the sludge, waste, and operational problems that come with it?
Yavuz Baykan brought more than 30 years of denim production and washing experience to that question. After years of R&D, HMS was developed as a patented reusable stonewashing medium.
In 2020, Beyza Baykan founded Baytech to bring HMS to denim manufacturers, brands, and creative communities around the world.
Today, HMS is used across industrial, educational, and creative settings, helping the denim industry rethink one of its most waste-heavy processes.
WHAT WE BELIEVE
Responsible washing should be the new standard, not the exception.
We believe denim should keep its character.
The fades, highs and lows, worn-in edges, and lived-in feel matter. But the way we create them needs to change.
HMS exists to help the industry move away from outdated, waste-heavy processes and toward solutions that work in real factories, real collections, and real creative spaces.
DENIM SUBCULTURE TIMELINE
Denim has always belonged to the ones who push culture forward.
Denim begins as a fabric built for durability.
Cowboys and workwear
1950s rebels
Denim becomes attitude.
Worn-in denim becomes casual and sun-faded.
1960s surfers
1970s hippies
Denim becomes self-expression.
Denim gets louder, rougher, and more personal.
1980s punks
1990s grunge
Denim rejects polish and embraces wear.
Denim becomes movement, impact, and daily life.
2000s skaters
HMS brings that rebellious energy into responsible washing.
Today
SUSTAINABILITY IMPACT
Pumice vs. HMS
Pumice:
High material use
Breaks down quickly
Creates sludge
Leaves dust
Requires handling and storage
Can increase rinsing
Can create machine issues
HMS:
Reusable
No pumice sludge
Lower material use
Lower transport weight
Less garment dust
Lower water levels possible
Consistent abrasion
SPEAKING & WORKSHOPS
Bring HMS into your event, school, factory, or brand space.
HMS offers talks, workshops, and hands-on sessions for brands, factories, schools, trade shows, and retail spaces.
These sessions make denim finishing easier to understand by combining real tools, creative practice, and sustainability education.
MISSION
Our mission
Our mission is to make responsible washing the new standard, not the exception.
We help brands, laundries, manufacturers, designers, and students create denim effects with less waste, more control, and a stronger connection to the people behind the process.
JOBS
Want to work with HMS?
We are always open to hearing from people who care about denim, sustainability, production, education, and creative culture.