When people think about sustainable fashion, they usually imagine the fabrics they can see - the flow of a dress, the texture of a jacket, the soft touch of a scarf. 

But the real sustainability choices often hide beneath the surface, in parts of a garment most never notice like the zippers, the linings, the interlinings. 

These hidden layers rarely get talked about. They aren’t what shoppers first notice. Yet they’re often the least sustainable parts of any outfit, quietly adding to environmental harm and even affecting the people wearing them. 

What’s Usually Hidden Inside Most Garments 

We use YKK - Natulon zippers, made from recycled PET bottles with mechanical recycling technology. 

 

• Over 99% post-consumer recycled material in the zipper tape yarn.
  
• Made from discarded plastic bottles and other waste streams.
  
• Durable and long-lasting without adding to plastic pollution.
  
• Free from surface coatings that can irritate skin.

Interlinings That Return to the Earth

 Our interlinings ECO 833 from Freudenberg, Germany, made entirely of viscose and Oeko-Tex certified. 

 

 

 

• 100% biodegradable — they naturally return to the earth.
  
• Free from petroleum-based synthetics and harsh chemical adhesives.
  
• Gentle on skin, without the chemical residues common in synthetics.

Linings That Feel as Good as They Are

 We use Asahi’s Bemberg fabric for our linings — a pure cellulosic fiber made from cotton linters, the short fibers that cling to cotton seeds. 

Why It Matters 

When a garment is truly sustainable, inside and out, it tells a full story — one that honors the earth and cares for the skin of the person wearing it. 

At House of Parvi, we make sure that story stays consistent, from the very first thread to the last stitch, from the fabric you feel to the parts you might never see. 

Because at the end of the day, real sustainability lives in the details.