Merino or synthetic: which t-shirt should I choose?

Choose merino for several days without washing and moderate exertion: the AIGLIERE 4 F combines 47% merino wool with 53% recycled polyester and weighs 90 g in size S. Choose a synthetic fabric for running or walking fast in warm weather: the LA FRANCAISE 2 F t-shirt weighs 75 g, while the VENTURI 6 F’s CimaDry technology dries up to 10 times faster than standard cotton, according to its product details.

Which shirt should I wear to protect against mosquitoes when travelling?

Choose a shirt with insect treatment built into the fibres, so there’s no product to reapply. The long-sleeved ALICANTE 4 F combines INSECT-STOPPER treatment with UPF 40 protection and weighs 130 g; the short-sleeved ANNABEL 4 F has back ventilation and weighs 110 g. The treatment is a permethrin-based insecticide that may cause skin sensitisation.

Vest or t-shirt for summer trail running?

Choose a vest if your shoulders can cope with the sun and your pack straps. The TINEE 2F weighs 65 g and packs into its own pocket; the LACHA F weighs 60 g. If you want your shoulders covered, the ELENA 2 F weighs 60 g in size S.

Can I wear a technical t-shirt around town?

Yes. Choose a cotton and polyester blend. The MAP 3 F, MAP 2 F and ALPINIST 2 F weigh 110 g in size S, help limit odours and offer UV protection up to UPF 30, according to their product details.

Women's T-shirts and shirts

Cimalp women’s T-shirts and shirts for hiking, trail, travel and city wear: CimaWool merino, CIMAFRESH or CimaDry synthetics, cotton and mosquito-repellent shirts, from a 60 g vest to a warm 175 g t-shirt.

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Choosing a women’s t-shirt for your activity level and the heat

When you’re active, a t-shirt needs to wick away sweat before it cools you down when you stop. Start with the length of your outing and the temperature, then choose the fabric. Merino wool helps limit odours over several days of trekking. For trail, synthetic fabric dries quickly and can weigh under 100 g, while a cotton and polyester blend works for city wear and easy trails. Before deciding, check the product details for:

Fabric: merino, synthetic or cotton and polyester
Weight, from 60 g for a vest to 175 g for a warm t-shirt
Sleeve length and whether it has a half-zip
The UPF rating if you’ll be exposed to the sun

Women’s merino t-shirt: AIGLIERE 4 and ASPRES 4 for trekking

For several days of walking without washing your top, choose wool. The short-sleeved AIGLIERE 4 F weighs 90 g in size S; the long-sleeved ASPRES 4 F weighs 125 g. Both combine 47% non-mulesed Australian merino wool with 53% recycled polyester. Under a heavy pack, choose the ASPRES 4 F : its soft fabric helps reduce irritation under pack straps. Find them in our women’s merino T-shirts.

Women’s trail t-shirts under 100 g for summer running

When running or walking fast in summer, you feel every gram beneath a hydration pack. The ELENA 2 F weighs 60 g in size S; the packable LA FRANCAISE 2 F t-shirt and the BOREON 3 F weigh 75 and 80 g respectively. If the wind on the ridge leaves you cold, choose the AUTANE F : its half-zip opens easily on the climb and closes again at the summit, and it weighs 80 g. In intense heat, the TINEE 2F vest weighs 65 g and packs into its own pocket. Compare them in our women’s trail t-shirts.

Long-sleeved t-shirt and warm t-shirt for winter

In cold weather, wear a moisture-wicking synthetic layer next to your skin beneath your fleece. The VENTURI LS 6 F weighs 135 g and uses CimaDry technology, which the VENTURI 6 F product details state dries up to 10 times faster than conventional cotton. For Nordic sports, step up to the HUEZ F, a warm, stretchy long-sleeved top weighing 175 g. When the cold sets in, switch to our women’s thermal base layers.

Hiking shirt or cotton t-shirt: travel and everyday wear

In strong sun or mosquito-prone areas, cover your arms. The long-sleeved ALICANTE 4 F shirt has UPF 40 protection and INSECT-STOPPER anti-mosquito treatment, weighing 130 g. The short-sleeved ANNABEL 4 F has back ventilation and weighs 110 g. This treatment is an insecticide*, recognised as effective against most mosquito species (Aedes, including Aedes albopictus, known as the "tiger mosquito", Culex and Anopheles). Compare the styles in our women’s hiking shirts.

For city wear and easy trails, choose a cotton and polyester blend : the MAP 3 F, MAP 2 F and ALPINIST 2 F combine cotton and CIMAFRESH polyester, weigh 110 g and have UPF 30 protection according to their product details. The cotton DAILY FRENCH F weighs 125 g and is made for everyday wear; the loose-fitting CRUX F weighs 140 g and is made from organic cotton for climbing. Complete your outfit with our women’s outdoor clothing.

* The mosquito-repellent treatment is a biocidal product containing permethrin as its active substance. It may cause skin sensitisation.

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