Top 4 Fabrics That'll Keep You Most Cool This Summer
In light of the recent UK heatwaves, choosing the right fabrics has never been more important
With the UK experiencing increasingly frequent summer heatwaves, staying cool has become a priority for many of us. While loose-fitting clothing helps, the fabric you choose makes an even bigger difference. Breathable, lightweight materials improve airflow, wick away moisture and keep you more comfortable throughout the day.
Choosing natural, responsibly made fabrics is also a simple way to embrace sustainable fashion, ethical fashion, circular fashion and more carbon-conscious shopping habits. Here are four of the best fabrics to help you stay cool this summer.
1. Organic Linen
The gold standard for hot weather
Organic linen is widely considered one of the coolest fabrics you can wear. Made from flax grown without synthetic pesticides or fertilisers, its natural fibres allow heat to escape while absorbing moisture without feeling heavy (European Environment Agency, 2022).
It's also incredibly durable, becoming softer with every wash while lasting for years. Because flax generally requires fewer agricultural inputs than many conventional crops, organic linen is also a popular choice for shoppers looking to make more sustainable wardrobe decisions (European Environment Agency, 2022).
Soft, breathable and comfortable, 100% organic cotton is a summer wardrobe staple. It absorbs sweat, allows air to circulate and feels gentle against the skin, making it ideal for everyday wear (Soil Association).
Unlike conventional cotton, organic cotton is grown without synthetic pesticides or genetically modified seeds, helping support healthier farming practices and biodiversity (Textile Exchange; Soil Association). Choosing garments made from 100% organic cotton ensures you get the full comfort and sustainability benefits.
Hemp is one of the most sustainable natural fibres available. It's highly breathable, naturally moisture-wicking and offers excellent durability, making it ideal for hot weather (Textile Exchange).
Hemp generally requires relatively little irrigation and fewer pesticides than many conventional fibre crops, while its long lifespan helps reduce the need for frequent replacements. Modern hemp fabrics are also much softer than many people expect, making them perfect for shirts, dresses and lightweight trousers (Textile Exchange).
Lyocell is a plant-based fibre made from sustainably sourced wood pulp and is well known for its silky feel and excellent moisture management (TENCEL™).
Its smooth fibres regulate temperature, absorb moisture efficiently and drape beautifully, making it a popular choice for summer clothing. Lyocell is often produced using a closed-loop manufacturing process that recovers and reuses most processing solvents, reducing waste compared with many conventional fibre production methods (TENCEL™).
The fabrics you wear can have a significant impact on your comfort during warm weather. Organic linen, 100% organic cotton, hemp and lyocell all offer excellent breathability while supporting more thoughtful purchasing decisions.
By investing in quality natural fibres, you're not only staying cooler but also supporting ethical fashion, circular fashion, carbon-conscious shopping and a more sustainable fashion industry.
Why Climate Action Matters
The recent UK heatwaves are a reminder that rising global temperatures are no longer a distant concern—they're already affecting our everyday lives. According to the UK Met Office and the Intergovernmental Panel on Climate Change (IPCC), climate change is increasing the frequency and intensity of extreme heat events (Met Office; IPCC, 2023). Without meaningful action to reduce greenhouse gas emissions, hotter summers and more frequent heatwaves are expected to become the norm. While choosing breathable clothing won't solve climate change, making more carbon-conscious purchasing decisions and supporting sustainable fashion are small but positive steps that contribute to a lower-impact future.
Stay Cool While Shopping More Sustainably
Discover fashion that's better for you and the planet
This summer, choosing breathable fabrics is one of the easiest ways to stay comfortable while shopping more responsibly. At The Carbon Closet, we're passionate about helping people discover sustainable fashion that combines style, comfort and quality. Whether you're looking for organic linen, organic cotton, hemp or lyocell, our platform makes it easier to find carbon-conscious, ethical fashion choices that are made to last.