11 Sustainable & Vegan Alternatives To Silk

Looking for vegan silk alternatives? Here are eleven sustainable and cruelty-free alternatives that offer a similar texture and aesthetic appeal without causing any harm to animals.

Silk may well be associated with luxury and elegance, but look behind the glamour, and you’ll find cruel practices that make silk far from vegan-friendly.

Silk is produced by silkworms – the larvae of the Bombyx mori moth. These silkworms spin cocoons made of silk fibre to protect themselves during the pupal stage of their life cycle.

It sounds benign, but to harvest silk, the cocoons are typically boiled or steamed to kill the silkworm pupae inside. To make just one metre of silk fabric, 3000 to 15,000 silkworms need to be boiled alive. This cruel process prevents the pupae from breaking the silk threads as they emerge as moths.

Peace silk, also known as Ahimsa silk, offers an alternative to conventional silk. Here, silkworms are allowed to emerge from their cocoons as moths naturally, without being killed or harmed in the process. It sounds good, but the reality is far from it.

After hundreds of years of selective breeding for the silk industry, the Bombyx mori moth is incapable of flight and no longer exists in the wild. They barely survive after being released from the cocoon, and most fall to the ground and die. It’s far from vegan or cruelty-free.

If you’re looking for a vegan-friendly fabric that offers the lux feel of silk, without any associated animal cruelty, then you’re in luck. I’ve found 11 more sustainable fabrics that offer a similar look without the exploitation.

The Eco-Friendly & Vegan Alternatives To Silk To Know

Here’s my full guide to cruelty-free silk alternatives, with the pros and cons for each.

Cupro

Cupro – short for cuprammonium rayon – is a regenerated cellulose fibre that has a silky feel and appearance without the use of any animal products.

This fabric is made from cotton linter. Linters are the tiny fibres that stick out of the cottonseed but are too small to spin into cotton, so it’s considered a waste product of the cotton industry.

So far, so sustainable. However, pulping these fibres to make Cupro is a water, energy, and chemically intensive process.

The production process involves dissolving the cotton linter in a cuprammonium solution – a mix of copper and ammonium, before adding it to caustic soda to create a viscous liquid. This liquid is then extruded through spinnerets to form filaments.

The filaments are then processed to remove any excess water and chemicals before being solidified into thread-like strands. Finally, these are then spun into yarn and woven into fabric.

Cupro is undoubtedly more sustainable than virgin polyester products, such as satin. However, with the production process in mind, it’s difficult to classify Cupro as a sustainable fabric.

One plus is that the sole manufacturer of Cupro – Bemberg – uses a closed-loop system to make the fabric. Bemberg says this system enables the recovery and reuse of major chemicals without any waste emissions. However, Bemberg doesn’t mention how much water and energy is involved, so it remains a bit of a grey area.

Lyocell

Lyocell is another regenerated cellulose fabric that’s known for its softness and breathability. Instead of cotton, it’s made from wood pulp, most commonly sourced from eucalyptus or beech trees.

Like Cupro, making Lycocell is chemically intensive to produce. However, Lenzing, the Austrian company which produces the majority of Lyocell fabric under the brand name TENCEL Lyocell, does so sustainably. Here, it employs a highly regulated closed-loop process. What this means is that the solvents and water used to create the fabric are recovered and reused.

Lenzing also sources its wood pulp from Forest Stewardship Council FSC-certified, sustainably managed forests. It then dissolves the wood pulp into a solvent called NMMO (short for N-methylmorpholine N-oxide). This sounds scary, but it’s less toxic than other solvents traditionally used to make regenerated cellulose fabrics, such as rayon. Less water is also required.

The solution is then extruded through small openings to create fibres. These fibres are then spun into yarn and woven into fabric.

According to Lenzing AG, 100% of the water used in the process is recovered and recycled. Meanwhile, the solvent is almost all fully recovered and reused – with a recovery rate of more than 99.5%. All in all, Lenzing AG say that 50% fewer greenhouse gases are emitted throughout the manufacturing process when compared to generic Lyocell. 

Ramie

Ramie, often referred to as “China grass,” is a natural fibre derived from the stem of the Boehmeria nivea plant. This is a type of nettle commonly found in East Asia, which, unlike British nettles, has a woody stem.

Ramie plants are highly resilient and, unlike crops like conventional cotton, require minimal water, pesticides, and fertilisers to grow. Its cultivation also has minimal impact on soil health, making it a more sustainable choice for farmers and ecosystems.

However, ramie isn’t a popular fabric choice. This is because ramie fibres are extracted in quite a complex and time-consuming three-stage process that involves stripping the bark and removing the gums and waxes from the plant. As it’s so complex and time-consuming to make, it is expensive to buy.

Recycled Satin

Recycled satin is commonly made from recycled polyester, which can come from various sources such as post-consumer plastic bottles or discarded polyester textiles. These materials are collected, cleaned, and processed into new yarns, which are then woven into satin fabric.

As a vegan alternative to silk, it doesn’t require any animal materials. Plus, it is less environmentally damaging compared to conventional satin, as it avoids the use of virgin plastics, and isn’t as energy-intensive to make.

It may sound super sustainable; however, there are a few big drawbacks to recycled satin. The first is that once made into clothing, recycled satin can’t be recycled. So while plastic bottles can be recycled several times over, once recycled satin clothing reaches the end of its lifespan, it’s only good for landfill.

The other main issue with recycled satin is that, as it is produced from polyester, it sheds microplastics with every wash. Microplastics are tiny fragments of plastic that can harm ocean and aquatic life. Worryingly, microplastics have also been found in our bodies. Scientists are currently uncertain about what the long-term impacts of that may be.

Bamboo Silk

Bamboo silk, also known as bamboo viscose or bamboo rayon, is a soft and versatile regenerated cellulose textile made from bamboo fibres. The plant is a highly renewable resource that grows rapidly and requires minimal water and pesticides to thrive.

Like Lyocell and Cupro, bamboo has to undergo a chemical process to extract the cellulose fibres, which are then spun into yarn and woven into fabric.

How sustainable the fibre is depends on the brand.

Some responsible manufacturers use closed-loop systems to recycle the solvents and water used, to minimise waste and pollution. Others have responsible chemical management systems and waste treatment practices in place. And others don’t. This means sustainable bamboo silk can be tricky to buy, unless the brand can tell you in detail how the fabric is made.

Soy Silk

Soy silk, also known as soybean fibre or soy protein fibre, is an innovative vegan fabric derived from the byproducts of soybean processing.

To create this silky fabric, the soy protein is extracted from the soybeans by soaking them in water. Once the soy protein is extracted, it undergoes a process called wet spinning. Here, the soy protein solution is forced through tiny holes into a coagulating bath. The coagulating bath contains chemicals or acids that cause the soy protein to solidify into fibres before being dried.

Like bamboo, it can be difficult to know which brands are using responsible chemical management systems and have strict waste treatment practices in place, so do check before you buy.

Banana Silk

As the name suggests, banana silk is derived from the fibres of the banana plant’s stem. Banana plants are fast-growing and require minimal water and resources to grow, making them a renewable and environmentally friendly source of fibre. Banana silk production also utilises agricultural byproducts that would otherwise go to waste.

Like cactus silk, it’s a time-consuming and therefore expensive fabric to make; however, no chemical inputs are required.

Artisans take the pseudostem – the part of the banana plant that looks like a trunk – after the fruit has been harvested, and soak it in water. After soaking, fine strips of the pseudostem are peeled off by hand and then dried in the sun. Once dried, these are then spun into yarn before being woven into fabric using traditional textile techniques.

Pineapple Silk

Pineapple silk, also known as Piña, is a sustainable and innovative textile made from pineapple leaf fibres. These fibres are derived from the leaves of the pineapple plant, which are typically discarded as agricultural waste.

The process of making pineapple silk involves extracting the fibres from the pineapple leaves, which are then processed and woven into a durable yet soft and lightweight fabric. This is made in a process broadly similar to making ramie fabric.

One of the key advantages of pineapple silk is its sustainability. It reduces waste by repurposing agricultural byproducts and eliminates the need for additional land, water, or pesticides. The production of pineapple silk also provides an additional source of income for pineapple farmers, supporting local communities and economies.

Cactus Silk

Cactus silk – sometimes known as vegetable silk or sabra silk – is a vegan-friendly textile derived from the Saharan aloe vera cacti. This is a member of the agave family that commonly grows in Morocco.

Cactus silk may sound like a new and trendy fabric, but it’s been used for centuries by Moroccan artisans. And as you might expect from an age-old process, it’s made sustainably.

The silk-like fibres are extracted from the plant by crushing and soaking the leaves in water to separate the fibres from the filaments. Once extracted, the fibres are cleaned and spun into yarns. The yarns are then dyed using natural dyes and then handwoven into textiles using looms.

That’s all there is to it. There’s no chemical-based processing involved. Plus, the plants are quick to grow and require minimal water and no pesticides to grow, making them resilient and environmentally friendly.

Despite being one of the most eco-friendly vegan silk fabrics around, its use is not very widespread. It’s a highly specialised fabric, made entirely by hand. This means it’s quite an expensive fabric to buy, making it out of reach of many ethical fashion brands.

Orange Silk

Orange silk, made by an Italian company called Orange Fiber, is an innovative fabric spun from the by-products of the citrus juice industry. Instead of letting tonnes of orange peels go to waste, cellulose from the peel is extracted and transformed into a silky, lightweight textile, without the need for any animal products.

Because it uses food waste as its raw material, it’s pretty sustainable as it doesn’t need any extra land, water, or crops to produce it.

However, the processing is energy-intensive, and production is done one small-scale. This means prices for this fabric can be high. It’s also often blended with other fibres for durability, which can complicate recycling at the end of its life.

Lab-Grown Spider Silk

Finally, lab-grown spider silk – also known as synthetic spider silk or bioengineered silk – is a vegan and cruelty-free fabric made by using biotechnological processes that mimic the web production of spiders.

The process typically involves genetically engineering microorganisms, such as bacteria, yeast, or plants, to produce proteins that mimic the structure and properties of spider silk. These proteins are then harvested and spun into fibres using techniques inspired by traditional textile manufacturing.

Lab-grown spider silk is still in its early stages of development and commercialisation. Whilst it’s difficult to find just now – outside of high-end designers, such as Stella McCartney – it may become more widespread in the fashion industry in the future.

Go Further

Looking for more ways to give your wardrobe a vegan makeover?

• Guide To Vegan Leather Alternatives
• The UK Vegan Clothing Brands To Know
• Guide To Vegan Shoes
• Guide To Vegan Handbags