Merino Light SL Baselayer

Super-lightweight baselayer meant for those very hottest days of the year. Cooler than wearing nothing, this baselayer is made from a unique blend of Merino and polyamide fibers. Soft, snug, and comfortable, like a second skin.

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55,00 USD
  • Free standard EU shipping on any order over 150 EUR
  • Express EU delivery 1-2 business days
Merino Light SL Baselayer Black
Merino Light SL Baselayer Black 55,00 USD

The best way to stay cool.

Product description

A light baselayer is an essential part of any summer cycling kit. We have designed this one for the riders who love how the natural fibers of Merino wool work to regulate the body’s temperature while keeping odors to a minimum. This blend of super-light Merino wool with a stretchy polyamide will offer the perfect combination of materials. The Merino ensures fast moisture wicking while the polyamide helps with durability of the knit. With the feathery weight and super soft feel, you will forget you are even wearing a baselayer. The stretchiness ensures a second skin fit while the suede label sits on the outside of the shirt to avoid any unwanted chafing.

  • Unique blend of Merino wool and polyamide fibers
  • Featherweight with superior moisture wicking capabilities
  • Extremely soft and feels like a second skin
  • Built for the hottest rides
  • Designed by Martin Velits using his experience from the pro peloton
  • Made in Slovakia
  • 80% Merino wool
  • 20% PA

Size Guide


A - BACK LENGTH 67 – 69 69 – 71 71 – 73 73 – 75 75 – 77 77+
B - CHEST 84 84 – 88 88 – 94 94 – 100 100 – 106 106 – 114


A - BACK LENGTH 26,4 – 27,2 27,2 – 28 28 – 28,7 28,7 – 29,5 29,5 – 30,3 30,3+
B - CHEST 33 33 – 34,75 34,75 – 37 37 – 39,5 39,5 – 41,75 41,75 – 45

All our baselayers act like a second skin. Extremly slim fit cut with extended back side for lower back protection. Whatever Isadore jersey size you are used to wear, this baselayer will certainly fit you in the same size. However if you prefer more casual fit, we advice you to choose one size bigger than the Isadore jersey you are used to.

Sizing guide


5 / 5
5 reviews

  • Highly functional base layer

    Marco Curnen, United States, 2.9.2018

    This merino baselayer feels like you're not wearing it at all, yet it definitely wicks efficiently and helps one stay comfortable on those hot and humid days. The fit is just right (does not bunch up under my bibs). Great design and functionality! Can't wait to purchase my next Isadore product.
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  • No difference yet a big difference

    Vratislav Podzimek, Czech Republic, 16.9.2018

    Wearing this base layer is impossible to notice. Once you put it on, you forget about it. Yet it makes a giant difference in comfort. A great combination with long/short sleeve jerseys for early/late summer temperatures.
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  • Super

    Rudolf Kopcan, Slovakia, 17.6.2020 (Merino Light SL Baselayer Natural White)

    Dnes na sebe prvy krat ale fakt pani nieco neuveritelne, jemne, lahke super
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  • Top

    Reinhard, Austria, 3.9.2018 (Merino Light SL Baselayer Natural White)

    Ein eigenwilliger Baselayer... Die Optik ist ein bisschen ungewöhnlich und ich war skeptisch, da das Netzgewebe so ganz anders aussieht, als man es von klassischen Funktions-Baselayern gewohnt ist. Irgendwie hat man den Eindruck ein "gehäkeltes" Teil vor sich zu haben. Aber: Was für ein wunderbares Teil - es macht genau das, was Unterhemden tun sollen - der Schweiß verschwindet wie von Zauberhand vom Körper und ich war absolut erstaunt, dass so ein luftiges Netz einerseits kühl und andererseits auch warm halten kann (weil kein nasses Trikot an der Haus anliegt). Mich hat dieser Merino-Baselayer überzeugt!
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