Original: $73.26
-70%$73.26
$21.98The Story
Kepler Men’s Short Sleeve – nature’s original technical base layer. Kepler is made from 100% pure merino wool — soft, breathable and built to perform, with zero synthetic fibres to get in the way. Just natural temperature regulation, pong-free freshness and all-day comfort, straight from the source.
Supernatural comfort. No-fuss performance.
-
Pure merino wool – warm when it’s cool, cool when it’s warm
-
Naturally odour-resistant – wear for days without washing
-
Ultrafine fibres (17.2 microns) – soft on skin, never itchy
For early starts, long days and everything between
Kepler Short Sleeve is a go-to for hiking, running, bikepacking or everyday layering. The 160gsm fabric regulates heat across conditions — cool enough for summer efforts, warm enough for crisp morning starts. Its natural elasticity and low-profile seams make it ideal under a midlayer or pack, and the pure merino construction means it won’t hold odour even after heavy use.
Soft, breathable and itch-free, Kepler gives you reliable comfort without the bulk — and without the need to overpack or overwash.
Lower impact. Longer lasting. Naturally better.
Kepler is made from 100% non-mulesed merino wool, certified to the Responsible Wool Standard. It’s renewable, traceable, biodegradable — and backed by our 3-Year Alpine Bond. Wear more. Wash less. Go further.
![Kepler Short Sleeve [Mens] - Image 2](/images/summittrailgear.shop/images/product/kepler-merino-short-sleeve-top-mens-2.jpg)
Details & Craftsmanship
Every detail has been carefully considered to bring you the perfect product.
![Kepler Short Sleeve [Mens] - Image 3](/images/summittrailgear.shop/images/product/kepler-merino-short-sleeve-top-mens-3.png)
Details & Craftsmanship
Every detail has been carefully considered to bring you the perfect product.
![Kepler Short Sleeve [Mens] - Image 4](/images/summittrailgear.shop/images/product/kepler-merino-short-sleeve-top-mens-4.jpg)
Details & Craftsmanship
Every detail has been carefully considered to bring you the perfect product.
![Kepler Short Sleeve [Mens] - Image 5](/images/summittrailgear.shop/images/product/kepler-merino-short-sleeve-top-mens-5.jpg)
Details & Craftsmanship
Every detail has been carefully considered to bring you the perfect product.
![Kepler Short Sleeve [Mens] - Image 6](/images/summittrailgear.shop/images/product/kepler-merino-short-sleeve-top-mens-6.jpg)
Details & Craftsmanship
Every detail has been carefully considered to bring you the perfect product.
![Kepler Short Sleeve [Mens] - Image 7](/images/summittrailgear.shop/images/product/kepler-merino-short-sleeve-top-mens-7.jpg)
Details & Craftsmanship
Every detail has been carefully considered to bring you the perfect product.
![Kepler Short Sleeve [Mens] - Image 8](/images/summittrailgear.shop/images/product/kepler-merino-short-sleeve-top-mens-8.jpg)
Details & Craftsmanship
Every detail has been carefully considered to bring you the perfect product.
![Kepler Short Sleeve [Mens] - Image 9](/images/summittrailgear.shop/images/product/kepler-merino-short-sleeve-top-mens-9.jpg)
Details & Craftsmanship
Every detail has been carefully considered to bring you the perfect product.
![Kepler Short Sleeve [Mens] - Image 10](/images/summittrailgear.shop/images/product/kepler-merino-short-sleeve-top-mens-10.png)
Details & Craftsmanship
Every detail has been carefully considered to bring you the perfect product.
Description
Kepler Men’s Short Sleeve – nature’s original technical base layer. Kepler is made from 100% pure merino wool — soft, breathable and built to perform, with zero synthetic fibres to get in the way. Just natural temperature regulation, pong-free freshness and all-day comfort, straight from the source.
Supernatural comfort. No-fuss performance.
-
Pure merino wool – warm when it’s cool, cool when it’s warm
-
Naturally odour-resistant – wear for days without washing
-
Ultrafine fibres (17.2 microns) – soft on skin, never itchy
For early starts, long days and everything between
Kepler Short Sleeve is a go-to for hiking, running, bikepacking or everyday layering. The 160gsm fabric regulates heat across conditions — cool enough for summer efforts, warm enough for crisp morning starts. Its natural elasticity and low-profile seams make it ideal under a midlayer or pack, and the pure merino construction means it won’t hold odour even after heavy use.
Soft, breathable and itch-free, Kepler gives you reliable comfort without the bulk — and without the need to overpack or overwash.
Lower impact. Longer lasting. Naturally better.
Kepler is made from 100% non-mulesed merino wool, certified to the Responsible Wool Standard. It’s renewable, traceable, biodegradable — and backed by our 3-Year Alpine Bond. Wear more. Wash less. Go further.

![Kepler Short Sleeve [Mens]](/images/summittrailgear.shop/images/product/kepler-merino-short-sleeve-top-mens-1.jpg)





















