In the scorching heat of a heatwave, staying cool and comfortable is a top priority. While the conventional wisdom of loose-fitting and lightweight garments is a good starting point, it's the materials and specific choices that can make all the difference. Here's a deep dive into the science of staying cool, with insights from experts in the field.
The Power of Natural Fibres
Natural fibres like linen, cotton, and silk are the unsung heroes of hot weather fashion. Preeti Gopinath, an associate professor of textiles, explains that these materials are naturally breathable, allowing moisture to be transported from the skin to the air. This is achieved through the absorption of sweat by the fabric, which then evaporates, cooling the skin. However, it's not just about the tag; the weave of the fabric matters too. Denim, for instance, has a dense weave that makes it less breathable compared to seersucker or poplin.
Britt Theodora, a stylist, recommends silk for evenings, when sweating is less likely, but advises against over-reliance due to its maintenance requirements. In contrast, cotton is a reliable choice, especially in loose-fitting garments that allow air to swirl around, picking up sweat and evaporating it, thus cooling the skin.
Synthetic fabrics: a double-edged sword
Synthetic fabrics, like those in workout wear and rain jackets, are known for their moisture-wicking abilities. However, in extreme heat, they can trap heat against the body, as they are less breathable than natural fabrics. This is particularly problematic when the skin is dry, and sweat is not evaporating effectively. So, while they might keep you dry, they don't necessarily keep you cool.
Loose-fitting is key
The looser the clothing, the better. Tight-fitting garments trap heat against the body, while loose clothing allows air to circulate, picking up sweat and evaporating it. Long-sleeve tops that are loose on the body also reduce the likelihood of sunburn. Theodora suggests balancing volume with form-fitting tops and roomier bottoms to maintain style and comfort.
Light colours reflect heat
Dark colours are great for hiding sweat stains and offering sun protection, but they absorb more heat than light-coloured clothing, which reflects sunlight. Gopinath recommends patterned and brightly coloured clothes that sit away from the skin for a middle ground. This way, you can stay cool while still enjoying the benefits of darker hues.
Accessories and outfit changes
Theodora suggests packing a light shirt or shawl for air-conditioned environments, and some may even opt for an extra shirt at the office. Gopinath notes that sweaty clothing is not a problem as it cools down as it releases moisture. However, it's important to feel comfortable, not just cool.
Rethinking accessories
Gold and silver are heat conductors, so jewellery made of these materials can trap heat. Gold-plated jewellery can tarnish with moisture, and pearls can yellow from sunlight. Hats, especially cotton baseball caps, are recommended for sun protection and sweat absorption, especially for those with bald spots or fine hair.
The scent of comfort
Natural fibre clothing is less likely to hold onto odours compared to synthetic fabrics that cling to the body. This applies to footwear too; plastic or foam shoes don't absorb sweat, leading to smelly feet. Gopinath recommends cotton socks with most closed-toe shoes for a fresh and comfortable experience.
In the heat of the moment, staying cool is all about the right choices. From natural fibres to loose-fitting garments and thoughtful accessories, every decision contributes to a more comfortable and enjoyable summer.
