How do you wash a merino t-shirt?

Wash it inside out on a delicate or wool cycle at 30 °C maximum, with a spin speed of 500 rpm, and without fabric softener. Dry it flat, out of direct sunlight: tumble drying will shrink it.

Can you wear a merino t-shirt in summer?

Yes. The AIGLIERE 4 F weighs 90 g in size S and is designed for warm, sunny outings; the CLAPIER 3 H weighs 115 g in size M. Wool helps regulate your temperature whether you're moving or taking a break.

Does merino keep you warm?

As a t-shirt, it can be worn year-round, on its own or as a base layer. In very cold weather, choose a 200 or 240 g/m² merino thermal base layer instead.

What are the drawbacks of a merino t-shirt?

It needs a gentle wash and must not be tumble-dried. When blended with polyester, it also sheds plastic microfibres during washing.

T-shirts in merino wool

Cimalp merino wool T-shirts for men and women, with short or long sleeves: a base layer that limits odours over several days of trekking and works in town too.

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The best T-shirts in merino wool for enjoying the mountains

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Hiking t-shirts

Merino base layers

T-shirts merino

A merino wool t-shirt for days of trekking without doing laundry

At the mountain hut in the evening, you have neither the time nor the water to wash your t-shirt. Merino wool limits odours without chemical treatment, so: you wear the same top again the next day, and the day after. It wicks away moisture on climbs and dries quickly.

Wear it next to your skin, on its own in summer or under a fleece and a windproof jacket when the air turns chilly. Its soft fabric helps prevent irritation beneath backpack straps.

The four Cimalp merino T-shirts: sleeves, fit and weight

CLAPIER 3 H: men’s, short-sleeved, crew neck, 115 g in size M.
AIGLIERE 4 F: women’s, short-sleeved, feminine fit, 90 g in size S.
CHARVIN 3 H: men’s, long-sleeved, 160 g in size M.
ASPRES 4 F: women’s, long-sleeved, close fit, 125 g in size S.

Choose short sleeves for summer and sunny climbs, or long sleeves to cover your arms year-round. You can also find these styles in our men’s merino T-shirts and our women’s merino T-shirts.

100% merino t-shirt or blend: what are these styles made from?

All four T-shirts combine 47% non-mulesed Australian merino wool and 53% recycled polyester. Wool regulates temperature and limits odours; polyester makes the fabric more durable where your pack rubs. CimaWool wool does not itch against the skin.

These are not 100% merino T-shirts. ‘Non-mulesed’ means the wool comes from sheep that have not undergone mulesing, the removal of skin around the tail practised in Australia to prevent fly infestations.

Merino or synthetic t-shirt for hiking

For a day out when you’ll change your top that evening, a synthetic t-shirt is enough: see our hiking T-shirts. Merino has the edge when you go several days without washing it, on multi-day hikes, while travelling or at a mountain hut. For cold conditions, switch to our merino wool thermal base layers, which are thicker.

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