Which women’s running t-shirt should I wear in summer?

Choose a vest or t-shirt weighing 60 to 80 g in size S, worn next to the skin. The LACHA vest (60 g) leaves your arms and shoulders free to move; the ELENA (60 g) has fine stripes to help regulate temperature; and the BOREON (80 g) has an ultra-breathable knit. All three have a CIMAFRESH anti-odour treatment.

Which long-sleeved t-shirt should I wear for running in cool weather?

Choose a lightweight long-sleeved t-shirt: the BOREON LS and LA FRANCAISE LS each weigh 95 g in size S; the TEAM LS weighs 100 g and also has flatlock seams. In cold weather, switch to the HUEZ, a warm 175 g top with thumb loops.

How can I prevent chafing from a trail t-shirt?

Choose a style with flat seams, known as flatlock seams, such as the TEAM LS or LACHA TEAM, or with bonded sleeve edges, such as the TEAM. Wear it next to the skin in your usual size. Under a hydration pack, the close fit of the GRIMPEUR PEI prevents fabric from bunching beneath the straps.

What size women’s running t-shirt should I choose?

Choose your usual size for every style in this selection. The fits vary: AUTANE has an ergonomic cut designed for women, LA FRANCAISE, TEAM and TEAM LS have a regular fit, and the LACHA vest has a sporty fit. Weights are given for size S.

Women's trail running T-shirts

Cimalp women’s running and trail T-shirts, from a 60 g vest in size S to a warm long-sleeved top, with a half-zip collar, anti-odour treatment and, on several styles, reflective details for running at night.

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Which women’s running t-shirt should you choose for the temperature?

On a lunchtime run in June, the heat builds from the first kilometre and your t-shirt sticks to your back. Start by choosing the weight and sleeve length for the temperature. The LACHA vest, 60 g in size S, leaves your arms and shoulders free; the BOREON, 80 g, has an ultra-breathable knit that wicks away moisture; the VENTURI, 105 g, works year-round, and its double-faced knit dries quickly. In hot weather, choose a vest or a short-sleeved t-shirt weighing 60 to 80 g; on cool mornings, go for a lightweight long-sleeved t-shirt.

Weights in size S:

Vests: 60 g for the LACHA, 65 g for the TINEE.
Short sleeves: 60 g for the ELENA, 75 g for LA FRANCAISE, 80 g for the BOREON.
Half-zip: 80 g for the AUTANE.
Long sleeves: 95 g for the BOREON LS and LA FRANCAISE LS, 100 g for the TEAM LS, 135 g for the VENTURI LS.
Warm running top: 175 g for the HUEZ.

Women’s trail vest and ultra-lightweight t-shirt for summer

On short, intense summer runs, every gram of fabric adds heat. The LACHA is a sleeveless vest: air circulates around your arms and shoulders, the fabric dries quickly, and the CIMAFRESH treatment limits odours between runs. The LACHA TEAM adds flat seams, known as flatlock seams, and a cutaway fit that accommodates a trail pack. In hot weather, choose the LACHA TEAM to wear under a trail pack.

The TINEE, a 65 g vest in size S, packs into its own pocket and works for hiking or travel. The ELENA, at 60 g, has fine stripes for effective heat management; its extra-fine knit reduces chafing but needs careful washing. For more ways to handle hot weather, read Running a trail in the heat: what to do.

Women’s trail t-shirt: half-zip, packable and reflective

On a steep climb, heat builds up under the collar. The AUTANE, 80 g in size S, has a half-zip collar: open it on the climb and close it on the descent or when it gets cool, without slowing down. LA FRANCAISE and the ITALIAN MONTAGNARD, both 75 g, pack down small. The 80 g TEAM has bonded sleeve hems with no seams to rub. The limited-edition GRIMPEUR PEI, a tribute to Réunion, has a close fit that prevents folds under the straps of a hydration pack.

For night runs, choose a style with reflective details, such as the BOREON, AUTANE or HUEZ. LA FRANCAISE and LA FRANCAISE LS reflect the spirit of our French Mountaineer Collection.

Long-sleeved t-shirt and warm running top for winter runs

At dawn, early in the season or at altitude, your arms stay cold for the first few kilometres. The BOREON LS and LA FRANCAISE LS, 95 g in size S, cover your arms without extra weight; LA FRANCAISE LS also packs into its own pocket. The 100 g TEAM LS covers your arms when the air cools or the sun is out, with flatlock seams that reduce the risk of irritation. The 135 g VENTURI LS combines hydrophobic polypropylene on the inside with quick-drying polyester on the outside, for running and hiking alike.

In cold weather, the 175 g HUEZ is a thermal top made with SMARTWARM fibres: it provides real warmth while remaining stretchy and breathable. Wear it on its own or as a base layer: its thumb loops protect your wrists from cold and wind. It also has a zipped back pocket and reflective prints. For a warmer layer, see our women’s thermal base layers and our women’s trail jackets.

Women’s running t-shirts: sizing, care and fit

Choose your usual size for every style in the selection, and wear the t-shirt next to your skin to let sweat escape. Fits vary: the AUTANE has an ergonomic cut designed for the female body, LA FRANCAISE, TEAM and TEAM LS have a regular fit, and the LACHA has a sporty fit. Wash extra-fine knit styles, such as the ELENA, with care.

For your lower half, see our women’s trail running shorts and trousers, and for sun protection, our trail running caps. Find the men’s styles in our men’s trail running t-shirts, and find the full range among our trail T-shirts. Like all Cimalp clothing, they benefit from the lifetime repairs.

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