Merino Wool and the Sun: Why Wool Has a Natural Advantage

Most people associate wool with warm winter sweaters and cold days. Yet merino wool is also an excellent choice when the sun is shining. It is well known for its breathable and temperature-regulating properties, but did you know that wool also offers natural UV protection?

In this blog, we'll explain why that is, what makes merino wool different from many other materials, and why it is so comfortable to wear during warm summer days.

Why is protection against UV radiation important?

Whenever you spend time outdoors, your skin is exposed to ultraviolet (UV) radiation. Too much UV exposure can damage the skin. That is why health organisations recommend using sunscreen, seeking shade and wearing protective clothing on sunny days.

Clothing forms an important first layer of protection. However, not every fabric offers the same level of protection. The type of fibre, the thickness of the fabric and the way a garment is knitted or woven all play an important role.

Does merino wool provide UV protection?

Yes. Wool is known for its natural UV-protective properties.

This is partly due to keratin, the natural protein that makes up most of the wool fibre. Keratin is able to absorb part of the UV radiation. In addition, the naturally crimped wool fibres create a relatively dense structure, allowing less UV radiation to pass through the fabric compared to many other textile fibres.

This unique combination makes merino wool an excellent choice for clothing worn on sunny days.

Why does merino wool stand out?

Merino wool is valued not only for its natural UV protection, but also for its exceptional wearing comfort.

Temperature regulating

Merino wool helps your body maintain a comfortable temperature. The naturally crimped fibres trap millions of tiny pockets of air. This layer of still air acts as natural insulation, retaining warmth when it's cold. When temperatures rise, the fibres help release excess heat and moisture. As a result, merino wool continuously adapts to changing conditions, keeping you comfortable throughout the year.

Moisture regulating

Whether you're hiking, cycling or spending a day at the beach, you'll naturally start to perspire.

Merino wool can absorb up to around 30% of its own weight in moisture without feeling wet or clammy. The fibres gradually transport moisture away from the skin, helping to maintain lasting comfort.

Naturally odour resistant

The natural properties of merino wool help prevent odours from lingering in the fibres. As a result, merino garments often need to be washed less frequently than clothing made from many other materials.

Is merino wool better than cotton?

A thin cotton T-shirt can allow a considerable amount of UV radiation to pass through, especially when the fabric is light-coloured, thin or damp.

Thanks to its natural fibre structure and the keratin it contains, merino wool naturally provides UV protection. Depending on the fabric and garment construction, wool can offer a relatively high level of UV protection compared with many other textile fibres.

In addition, merino wool remains comfortable to wear, even as temperatures rise.

Don't forget your sunscreen

Although merino wool naturally helps protect against UV radiation, protective clothing should never replace sunscreen.

If you're spending extended periods outdoors, always apply sunscreen to exposed skin, wear a cap or hat when appropriate, and seek shade during the hottest hours of the day.

Merino wool: Comfortable in every season

Merino wool proves that wool is no longer just a winter fabric. Thanks to its temperature-regulating properties, excellent moisture management and natural UV protection, it is also an ideal choice for warm, sunny days.

Whether you're hiking, cycling, travelling or enjoying a day at the beach, merino wool offers a natural way to stay comfortable as temperatures rise.

Discover merino wool for summer

Curious about how merino wool feels on warm days? Explore our collection of merino wool T-shirts or browse our complete collection of wool clothing. Experience for yourself why more and more people choose merino wool, even during the summer.