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

Choose merino for several days without washing and moderate exertion: the CLAPIER 3 H combines 47% merino wool with 53% recycled polyester and weighs 115 g in size M. Choose a synthetic fabric for running or walking fast in warm weather: the EIGER 2 H weighs 80 g, while the VENTURI 6 H’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 ACAPULCO 4 H combines INSECT-STOPPER treatment with UPF 40 protection and weighs 210 g; the short-sleeved ANTON 6 H and ANTON 5 H offer UPF 30 protection and weigh 150 g. The treatment is a permethrin-based insecticide that may cause skin sensitisation.

Can I wear a technical t-shirt around town?

Yes. Choose a cotton and polyester blend. The SHELTER H, HERBIER H, MAP 3 H and MOUNT H weigh 145 g in size M, help limit odours and offer UV protection up to UPF 30, according to their product details.

How can I limit odours in a sports t-shirt?

Choose a fabric that retains fewer odours. The merino wool in the CLAPIER 3 H and CHARVIN 3 H, and the CIMAFRESH anti-odour treatment in the EIGER 2 H and LE FRENCH MONTAGNARD 2 H, are designed for long, active days. Afterwards, wash each garment according to its care label.

Men's T-shirts and shirts

Cimalp men’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 75 g vest to a warm 240 g top.

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The best Men's T-shirts and shirts for enjoying the mountains

Technical T-shirts

T-shirts de randonnée

trail t-shirts

Shirts

Base layers

Choosing a men’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 75 g for a vest to 240 g for a warm top
Sleeve length and whether it has a half-zip
The UPF rating if you’ll be exposed to the sun

Men’s merino t-shirt: CLAPIER 3 and CHARVIN 3 for trekking

For several days of walking without washing your top, choose wool. The short-sleeved CLAPIER 3 H weighs 115 g in size M; the long-sleeved CHARVIN 3 H weighs 160 g. Both combine 47% non-mulesed Australian merino wool with 53% recycled polyester. The CLAPIER’s soft fabric helps reduce irritation under pack straps. Choose your usual size, as stated in their product details. Find them in our men’s merino T-shirts.

Men’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 EIGER 2 H weighs 80 g in size M and has a fine-striped knit and UPF 40+ sun protection. The packable LE FRENCH MONTAGNARD 2 H t-shirt weighs 95 g. If the wind on the ridge leaves you cold, choose the FARAUT 2 H : its half-zip opens easily on the climb and closes again at the summit, and it weighs 100 g. In intense heat, the FAURIO 2 H vest weighs just 75 g. Compare them in our men’s trail t-shirts.

Long-sleeved t-shirt and warm top for winter

In cold weather, wear a moisture-wicking synthetic layer next to your skin beneath your fleece. The VENTURI LS 6 H weighs 190 g and uses CimaDry technology, which the VENTURI 6 H product details state dries up to 10 times faster than conventional cotton. For Nordic sports, step up to the ALBAN H (210 g) or the ARGENTIERES H, a 240 g thermal top with a zipped collar. When the cold sets in, switch to our men’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 ACAPULCO 4 H shirt has UPF 40 protection and INSECT-STOPPER anti-mosquito treatment, weighing 210 g. The short-sleeved ANTON 6 H and ANTON 5 H have anti-mosquito treatment and UPF 30 protection, and weigh 150 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 men’s hiking shirts.

For city wear and easy trails, choose a cotton and polyester blend : the SHELTER H, HERBIER H, MAP 3 H and MOUNT H combine cotton and CIMAFRESH polyester, weigh 145 g and have UPF 30 protection according to their product details. The cotton DAILY FRENCH H weighs 145 g and is made for everyday wear. Complete your outfit with our men’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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