Natural Fibre Clothing: The Complete Guide to Breathable Fabrics
Natural fibre clothing is made from fibres that come from plants or animals rather than petroleum-based synthetics. People often choose it for comfort and breathability. This guide covers what counts as a natural fibre, how the main fabrics compare, how they differ from synthetics, and how to build a wardrobe around them.
What is natural fibre clothing?
Natural fibres are spun into yarn and made into fabric. They fall into two groups.
Plant-based fibres
- Cotton
- Linen
- Hemp
- Modal, made from beech wood pulp
- TENCEL™ Lyocell, made from wood pulp
Strictly speaking, modal and lyocell are regenerated cellulose fibres: they start from a natural raw material but are processed into fibre. Plant fibres are known for being light and breathable, which suits clothes worn close to the body, such as modal T-shirts and lightweight layering tops.
Animal-based fibres
- Wool
- Merino wool
- Cashmere
- Silk
Animal fibres tend to provide warmth and insulation, so merino knitwear and lightweight wool jumpers give warmth without much bulk.
Natural fibres compared with synthetics
| Natural fibres | Synthetic fabrics (polyester, nylon) |
|---|---|
| Made from plants or animals | Made from petroleum-based materials |
| Generally breathable | Often less breathable |
| Can break down over time in the right conditions | Slow to break down |
| Tend to adapt to temperature | Can trap heat |
Synthetics are not all bad. Polyester and nylon can be very durable, and are widely used for sportswear and outerwear. For clothes worn directly against the body, many people simply prefer how natural fibres feel through the day. Every fibre, natural or synthetic, has its own environmental trade-offs, including water, land, energy and chemicals, so no fabric is simply good or bad.
Comparing the main natural fabrics
| Fabric | Breathability | Best for |
|---|---|---|
| Cotton | High | Everyday clothing |
| Modal | Very high | Base layers and T-shirts |
| Linen | Excellent | Summer clothing |
| Merino wool | High | Winter layering |
Cotton
One of the most widely used natural fibres. It is soft, breathable and easy to care for, used for T-shirts, shirts, dresses and casual trousers.
Linen
Made from flax. It is highly breathable, absorbs moisture and feels light, which is why it is popular in warm weather.
Wool
Taken from sheep and valued for insulation. It is used for jumpers, scarves, coats and knitwear.
Merino wool
A finer, softer wool, good for base layers, lightweight knitwear and outdoor clothing. It stays warm while remaining breathable.
Modal
A plant-based fibre made from beech wood pulp. It is soft, lightweight, breathable and resists shrinking. We use TENCEL™ Modal, under licence, in our core T-shirts, loungewear and nightwear.
Natural fibre clothing for everyday
- T-shirts: cotton or modal T-shirts are easy to style and comfortable in most weather.
- Long sleeve tops: long sleeve tops add light warmth and layer well.
- Knitwear: wool or merino for warmth without bulk.
- Summer clothing: linen shirts and dresses let air circulate in heat.
- Base layers and sleepwear: see our base layers and nightwear.
How to build a natural fibre wardrobe
- Start with basics: T-shirts, layering tops and lightweight knitwear.
- Choose versatile colours: white, navy, grey and black are easy to mix.
- Check the composition label: a garment may be mostly natural fibre with some synthetic added for stretch, so read the label.
- Choose well-made pieces: good fabric and construction last longer whatever the fibre.
This approach suits a capsule wardrobe: a few T-shirts, long sleeve layering tops, a wool jumper, tailored trousers and a linen shirt.
FAQ
Which fabrics are natural fibres?
Cotton, linen, hemp, wool, merino, cashmere and silk. Modal and TENCEL™ are plant-based but are regenerated cellulose, made from wood pulp.
Is modal a natural fibre?
It is made from beech wood pulp, a natural raw material, but it is processed into fibre, so it is usually described as regenerated cellulose.
Which natural fabrics are most breathable?
Linen, cotton and modal are among the most breathable.
What are the benefits of natural fabrics?
Breathability, comfort and a pleasant feel against the body. They are not better in every respect, so choose by what the garment needs to do.
