A Question We Hear All the Time
One of the most common questions people ask when exploring Irish knitwear is whether Aran sweaters are waterproof. The simple answer is no, an Aran sweater is not waterproof in the way a rain jacket is. However, what many people don’t realise is that natural wool has remarkable water-resistant qualities. This is one of the reasons Aran sweaters became so important to fishermen along Ireland’s rugged Atlantic coastline. For generations, these sweaters were worn while working in damp, windy conditions at sea.
Why Wool Handles Moisture So Well
Wool is a remarkable natural fibre. One of its unique properties is that it can absorb moisture without feeling wet to the touch. In fact, wool can absorb up to around thirty percent of its own weight in moisture before it begins to feel damp. At the same time, wool fibres help move moisture away from the body, allowing the wearer to stay warm and comfortable. This natural breathability is one of the reasons wool clothing has been used for centuries in outdoor environments.
The Fishermen of Ireland’s Atlantic Coast
Traditional Aran sweaters are strongly connected to the fishing communities of Ireland’s west coast. Fishermen heading out into the Atlantic needed clothing that could handle cold winds, sea spray, and changing weather. The thick wool knit of the Aran sweater helped insulate the body and keep warmth close to the skin. Even when exposed to moisture, the wool fibres continued to trap heat, helping fishermen stay warm. This practical design made the Aran sweater a trusted companion for life along the Wild Atlantic Way.
Watch Aidan Explain How Aran Sweaters Handle the Weather
In the short video below, Aidan explains why Aran sweaters are naturally water-resistant and why they remain such a practical choice today. He shares how wool helps regulate body temperature, absorb moisture, and keep you comfortable even when the weather changes.
Perfect for Ireland’s Changing Weather
Ireland is famous for having four seasons in a single day. Because of this, layering clothing has always been important. Aran sweaters work beautifully as a mid-layer. Worn over a shirt and under a coat, they provide warmth while still allowing your body to breathe. This versatility is part of what has made the Aran sweater so popular around the world.
A Practical Piece of Irish Heritage
Today Aran sweaters are worn not only for warmth but also for their connection to Irish heritage. The patterns, the wool, and the craftsmanship all reflect traditions that have been passed down for generations. While they may not be waterproof like modern outdoor jackets, their natural ability to handle moisture and regulate temperature makes them an excellent choice for everyday wear. And of course, they carry something else with them too, a story of Ireland’s past.
Explore Our Aran Sweater Collection
If you’d like to experience the warmth and craftsmanship of traditional Irish knitwear, you can explore our Aran sweater collection here.
Each sweater carries the tradition of Irish craftsmanship and the history of the Atlantic coast.
Frequently Asked Questions About Aran Sweaters
Are Aran sweaters waterproof?
Aran sweaters are not fully waterproof like a rain jacket, but the natural wool used in them is highly water-resistant. Wool fibres can absorb moisture while still keeping the wearer warm and comfortable.
Why were Aran sweaters worn by fishermen?
Fishermen along Ireland’s Atlantic coast wore Aran sweaters because the thick wool knit helped protect them from cold winds and damp conditions at sea.
Do Aran sweaters keep you warm when wet?
Yes. Wool fibres trap air and continue to provide insulation even when they absorb moisture, which helps maintain body warmth.
Are Aran sweaters good for layering?
Absolutely. Aran sweaters are excellent mid-layers and can be worn comfortably under a coat or jacket in colder weather.