Posted in Run

For the majority of runners, gym-goers, hikers and exercise enthusiasts, the wash basket is always full to the brim with sweaty, workout gear. If you're lucky, you might get two wears out of a top and you can't wait to peel it off after. What if we told you there was a solution to keep up with your exercise habit...

The constant washing of sports gear actually deteriorates the garment's life, but it's also not good for the environment. Sweaty clothes typically need to be washed on a hotter setting to kill germs too... the more washing you do, and the hotter setting you have your washing machine on, equals more energy being used.

But what if we told you you could wear the same t-shirt for 7 days? Only wash it once a week (on a low heat)! And even then, it's nowhere near as limp or stale as your regular t-shirts? In fact, it's still pretty fresh...

Icebreaker t-shirt

Merino wool fabric is made from a renewable fibre that naturally resists odour, no matter how much you sweat. It also keeps you cool when you get hot or it warms you up when you're feeling cold. The fabric naturally lets your skin breathe. The Icebreaker t-shirts are made from Merino wool and so we at Wiggle put them to the test. 7 days. 1 t-shirt.

How it fits

The fabric of the t-shirt feels really soft to touch and is not what comes to mind when you hear the word 'wool'. Merino wool fibres are fine and the material feels thin, unlike coarse heavy typical woollen jumpers. This makes it lightweight and breathable. The t-shirts themselves are not tight-fitting, but are forgiving - making them ideal for sports!

The sniff test

The beauty of Merino wool is that not only did this tee feel soft and light right away but it really does remain remarkably fresh and odour free despite no sign of being washed for days on end. Despite daily walking, some longer weekend hikes and warm weather I never felt uncomfortable, the tee did a great job of regulating temperature.

 I'm not making my friends pick up the pace to get away from me...

Keeping cool

I’ve recently been out and about and really put the T-shirt through its paces, wind, rain and Sun. Classic British summer. Firstly I popped to Cornwall for the first day to test out the Icebreaker T-shirt, initial impressions were great, light, soft and exceptionally comfortable but the real challenge was coming up.  Being Hit with 40mph winds at Lizard "the most southernly point of England” was incredible with swells over 10 ft and spotting some seals bobbing in the cove, surprised at how well the shirt handled the wind.   The next day was a beautiful hike from St Ives to Zennor, with some scrambling and the sun trying to show its face, the main surprise was no sweat patches, even with a backpack on the shirt was light and breezy.   The day after was a travel day back to Portsmouth no issues encountered and the big surprise was no smell after such a long day travelling and sitting still in the car.

I have taken part in the 1 Tee, 7 Days challenge and to complete it I have used the T-shirt for my daily long distanced, fast paced walk across coastal paths and hilly national parks as well gym sessions. At first, the thought of not washing the T-shirt for 7 days was daunting but I must say I was completely surprised at the temperature management of the product, especially with the warmer weather – I felt cool and completely comfortable and in turn I feel like the odour was still pleasant after multiple wears. I am a UK Size 8/Small and the T-shirt fits great, it’s slightly loose but still feels famine. The T-shirt feels lightweight but has good coverage – really happy with the outcome of this challenge.


 gym sessions, 10km+ trail runs, 15km road runs and long hikes. It ended up looking worn as you would expect but could happily be worn again if required. You read alot about sustainability in sport/fashion and this approach has certainly changed the way I look at buying kit.

I am pretty big on sustainability and not only is Merino ethically sourced, but the reduction in washing is a big benefit for the environment.

Shop Icebreaker clothing at Wiggle

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About the author

GBurden's picture
Gabriella Burden
Published on: 03 Jun 2021

You'll find me running, swimming, cycling, or hiking. And trying to convince anyone and everyone to do the same.