Materials guide
Is Silk Plastic-Free?
Yes. In our glossary, silk is a Tier 1 material (all natural): sourced directly from nature, free from plastics and synthetic processes.
About silk
A naturally occurring protein fiber spun by the larvae of certain silkworms, prized for its smooth texture, lustrous sheen, and exceptional strength.
Uses: Traditionally used in luxurious clothing (dresses, gowns, lingerie), but also popular in scarves, home textiles (curtains, bedspreads), and upholstery.
Good to know: Silk is often referred to in clothing by its weave, such as chiffon, Crêpe de Chine, noil, faille, satin, Charmeuse, and many others. Unfortunately, these terms are also used by clothing manufacturers using synthetic materials, so confirming you are buying real silk is important.
Tiers come from the Unwrap materials glossary, a guide to what's natural, nature-inspired, or best avoided.
Brands using silk (7)

Alex Crane
Alex Crane makes breezy clothing.
B CorpGOLS
ANOTHER ASPECT
Ideas of everyday elements
GOTSCotton
Biosofa
100% natural furniture
OEKO-TEXCotton
HERTH
Consciously silk
GOTSOEKO-TEX
Organic Weave
GOTS-certified area rugs
GOTSCotton
Savvy Rest
Organic Mattresses and Bedding
B CorpGOLS
With Nothing Underneath
Womenswear inspired by British heritage and timeless style.
B CorpCotton