100% Merino LS Baselayer Grey

78,00 USD
  • Free standard EU shipping on any order over 150 EUR

  • Express EU delivery 1-2 business days

100% Merino LS Baselayer Grey

100% Merino LS Baselayer Grey

78,00 USD
Size Guide ?
100% Merino LS Baselayer Grey
100% Merino LS Baselayer Grey



  • 100% Merino wool
  • Soft on touch
  • Excellent perspiration and wicking
  • Distinctive collar cut construction and slim fit
  • New color variations

    This piece of garment is one of the key parts of every rider’s wardrobe. In times when the temperatures drop, it can be combined with top layers to make you feel comfortably warm. Combining the natural characteristics of Merino wool, they are odor resistant and have excellent perspiration wicking and thermoregulation.

    Constructed from 250g/m 100% Merino Wool fabric.

    Comes in many colour variations: black, flecked grey, Laurel Wreath (olive), Atlantic Blue, and Golden Oak.

    Super comfortable

    Slim fit is comfortable enough to feel free when moving and Merino is soft on touch and itch free. We removed any labels and tags to avoid discomfort. Long sleeve features cuffs with thumbholes for full arm coverage and a snug.

    Race or comfort size

    Pick your regular size for slim performance fit. If you prefer comfort fit we recommend one size bigger.

    Easy care

    High quality and delicate material that deserves careful maintenance. We strongly recommend cold hand washing and strictly no tumble dryer.

    Proudly handcrafted in EU.

    Sizing guide


    A - BACK LENGTH 66 – 68 68 – 70 70 – 72 72 – 74 74 – 76 76+
    B - CHEST 84 84 – 88 88 – 94 94 – 100 100 – 106 106 – 114


    A - BACK LENGTH 26 – 26,8 26,8 – 27,6 27,6 – 28,3 28,3 – 29,1 29,1 – 29,9 29,9+
    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.

    • Very nice

      Miguel van den Wildenberg, Germany, 18.10.2019

      For a 'winter' baselayer I would preferred a higher collar, but is still a very fine shirt. Following other reviews I have ordered a size bigger than normal. Size L is just perfect for me: 1.86m/72kg.

    • Nice baselayer

      Ignacio Prieto Diaz, France, 8.2.2019

      I love the soft feeling of this perfect baselayer. The holes for the thumb are nice keep the sleves on the place but, at least for me, they are not useful during the ride. Perfect temperature keeping, and as promise no smells after using! 185 cm / 84 kg size XL good fitting.


      Vaughan Watson, United Kingdom, 20.2.2018

      Great base layer pair this with long sleeve jersey and Merino Softshell Jacket still warm in sub-zero conditions. Love the thumb holes nice touch. The advice is to buy a size bigger than your jersey size - i can definitely recommend this as even when using cool hand wash the item did shrink a little which is fine if you buy a size up. Highly recommended as usual with the brilliant Isadore gear!

    • Best baselayer I have owned

      Ian Bowden, United Kingdom, 23.12.2017

      I have been really impressed with this base layer. It is a great fit, and super warm so far. I have been riding in 1 - 10 degrees and the base layer and a Gabba jersey have been a perfect combination. I really like the quality of the base layer and hope it last longer than my previous merino layer, from another leading brand, which disintegrated after a couple of years. Cstomer service and packaging are a joy also.

    • passt

      robert kalasek, Austria, 21.8.2017

      perfekt ! - mit potenzial auch bei mir zum lieblingsstueck zu werden ! mit drei kleinen einschraenkungen: - die daumenschlaufen sind nicht mein ding ... dort zieht es rein - die armel sind an den handgelenken etwas weit (in kombi mit den schlaufen - zugluft) - xl passt perfekt - allerdings ist die laenge ist etwas knapp bemessen fuer ein rad-baselayer-teil. hinweis. laut groessentabelle wuerde ich zwischen L und XL liegen ... habe das SS in L und das ist ziemlich knapp. daher auch meine empfehlung eher groesser waehlen. 190, 81kg

    • So geht's!

      Jens Heinen, 7.2.2017

      Wieder volle Punktzahl für ein Isadore-Produkt: Sehr gute Passform, die Ärmel mit Daumenschlaufen haben die richtige Länge, sehr angenehm zu tragen, tolle Isolation, behält beim Waschen die Form, langlebig. Dazu lässig designed und nachhaltig hergestellt. So geht's.

    • Schlichtweg das Beste!!!

      , , 10.1.2017

      Aufgrund der positiven Rezesionen hier habe ich mir dieses Unterhemd bestellt! Vom ersten mal Anziehen war ich schlichtweg begeistert! Tolles kuscheliges Tragegefühl und eine gut sitzende anschmiegsame Passform. Fahre bis -5 Grad 3-5 Stunden mit diesem Baselayer und der Isadore Jacke. Kalt wird es nicht! Der Schweiss wird fantastisch abtransportiert und das Körperklima wird durch Merino super reguliert! Verwende es mittlerweile auch zum Joggen, wandern und im normalen Alltag!! Ein absolutes musthave und mein Lieblingskleidungsstück! Wunderbar dass es auch in Europa zu (hoffentlich) gerechten Lohnverhältnissen gefertigt wird. Abgesehen von der Fertigung ist das Leiberl noch in einer anderen Hinsicht nachhaltig: Man braucht es nur alle 3 Wochen waschen! ! Fängt nicht zu riechen an! ! Wirklich ein tolles Produkt! Outstanding!! Ich: Rennradfahrer 10.0000 KM pA // 180 cm/ 82 kg = Large anliegend = Xlarge locker

    • Best base layer you will ever use!

      Ed Newey, Switzerland, 31.3.2016

      This is a bold statement I know, however its absolutely true. These base layers are outstanding and have become my number one item for every ride, ski, walk and generally anything outside! Super soft, they wick moisture away from the skin immediately, they don't leave a bad smell and wash very easily. I have been washing them a lot and after 5/6 months they are still in great condition. They are probably the most popular item in our cycling club. Buy the bundle and then 3 of each because you will use them and your friends will want some too! Another outstanding product from Isadore.

    • Quality

      Mark Botham, United Kingdom, 10.3.2016

      Ordered this as my UnderArmour made me feel the chill when it was around 5 degrees. So having seen this get top marks in a cycling magazine I thought paying a bit for a better quality product was the way to go. Simply, it is very comfortable & keeps the chill completely off. Much better than the UnderArmour. I know price is always a consideration, but you pay for quality. I cant recommend this highly enough.

    • Barry Fink, United Kingdom, 24.10.2015

      The quality and feel of this is amazing, purchased it in the grey and it looks very stylish,keeps you warm yet still doesn't leave you sweaty. if this is the quality of the base layer then I can't wait to get my hands on the soft shell jacket, will allways be buying isadore gear from now on. Also love love the personal touch and the packaging, all in all great products and great company

    • esto si es segunda piel

      jose manuel zamora venero, Spain, 18.5.2015

      acertado, 100% recomendable, en isadore gasto la xl, en esta prenda tenia que haber elegido la xxl,me queda un pelín justa(para que lo tengáis en cuenta pero lo use y... de todos modos , muy a gusto.

    • Light, Comfort & Function

      Kevin Finch, United Kingdom, 29.4.2015

      I have a few Isadore base layers now and I don't wear any other. The merino is soft and supremely comfortable. I always wear a base, even in summer (a vest), and these are excellent for wicking moisture away. They have no odour so you don't need to worry about the cafe stop. Wash them carefully (30 degrees maximum and use delicate cleaning agents) of course, and they stay like new.

    • THE BEST - ALL AROUND LAYER WITH 100% MERINO (100% Merino LS Baselayer Laurel Wreath)

      Tomi, 12.12.2020

      I am 182 and 74kg, ordered M (I have everything in M from Isadore) and it comes Race fit. (if you want more relaxed, then go one size up). I use it for Hiking and Winter climbing as well. This is such a quality product from Merino, the best I have ever seen or used (I have a lot of them). Soft on touch and really warm and thick. The price is a steal, go for it!

    • Superb (100% Merino LS Baselayer Black)

      Grant Reaburn, New Zealand, 3.8.2020

      I have a drawer full of merino thermals I wear both off and on the bike. Most are 150 or 180gram weight. This one is 250gram and is the best by far. The sizing is tight to begin with but merino does loosen up with time. Some have commented that these are expensive. I disagree. If you can find a 250gram merino top at a better price I would be surprised and of this quality definitely not. Chapeau Isadore!

    • Comfortable and breathable (100% Merino LS Baselayer Maritime Blue)

      Nathan Thomas, United Kingdom, 19.5.2020

      Had my 100% Merino LS baselayer for a couple of years now, and it still feels very soft and comfortable against the skin. Mine did shrink a little after a few washes even after following the care instructions, so in future I might be inclined to size up. The Maritime Blue colour is definitely closer to the blue in the model photos, rather than the more purplish tone in the product image, but it's still a great colour.

    • Comfortable and form fitting for colder rides (100% Merino LS Baselayer Maritime Blue)

      Kris Terauds, Switzerland, 7.1.2019

      I wear several non-cycling merino shirts as base layers. This one is better: softer on the skin and form fitting. It is also thicker than the others, so I wear it on my coldest rides. I am 193cm/95kg and the XXL fits me perfectly.

    • Comfortable but sleeves too short (100% Merino LS Baselayer Black)

      Stefan Zieg, Germany, 21.12.2018

      Just bought XXL (180/90) for Winter walks and rides, feels very comfortable und cosy. Unfortunately the sleeves are about 2-5 cm to short. Usually this is not a problem for me with other brands and the Ovada Deep Winter Baselayer Men in XL. Using the thumbholes helps a littlelittle bit. Please give some cms to the sleeves ;-), especially for winter.

    • great stuff (100% Merino LS Baselayer Marsala)

      Andras Balazs, Hungary, 13.11.2018

      Beutifully packaged ,real luxurious feel. Fast wicking,really comfy.Only one thing,it could be a little longer in the waist.

    • High quality merino (100% Merino LS Baselayer Maritime Blue)

      Philippe Lemmens, Belgium, 9.6.2018

      I purchased a few of these long sleeve merino base layers. It's a high quality merino, which allows for some flexibility in temperature to stay comfortable (not too hot or cold), so I use this base layer when temperatures differ much between the start and finish of my ride. It's also very nice to have a beautiful blue instead of black or white. I'm 1.75 m and 71 kg, and purchased Large (which is a very comfortable fit, and still close to the body - Medium should be my size, but I prefer a larger fit for winter and have longish arms). As I have a number of these already, needless to say that I'm very happy with this great base layer.

    • Au chaud tout le temps ! (100% Merino LS Baselayer Laurel Wreath)

      Matthieu Bardou, France, 9.2.2018

      J'utilise ces baselayers pour courir ou pour les sorties à velo et j'en suis vraiment content. Ils sont parfaitement coupés et leur technicité en fait un allié précieux pour rester au chaud et au sec. Je les recommande fortement +++

    • True Merino experience (100% Merino LS Baselayer Laurel Wreath)

      Luca, Germany, 14.7.2017

      Quality Merino under vest, feels soft and dry all the time. Great fit and outstanding design, i actually ended up using it in colder days also while working.

    • The best base layer I own (Women 100% Merino LS Baselayer Grey)

      Barbora, Czech Republic, 12.1.2017

      This is truly one of the best pieces in the sport section of my wardrobe. I wear it all the time, on and off bike. It has all the qualities of merino wool, it does not smell and won't make you neither too hot nor too cold. Moreover, the fabric is the most quality merino I have ever worn, it is incredibly soft and fluffy. The fit is perfect, too. And the cherry on the top is of course that it's made locally in the region. Dream! I only wish Isadore made black or white option, I would buy the whole bundle instantly.

    • Roger

      Roger Murer, Switzerland, 30.11.2020

      Great baselayer! I am 188, 77kg, chest 100cm with long arms. Size L works, but arms could be 2-3cm longer.

    • Lepšie na zimu som nemal

      Daniel Pápež, Slovakia, 26.1.2020

      super kvalita ,len rukávy sú krátke a trocha veľký výstrih okolo krku

    • Great base layer

      Juraj Toth, France, 4.1.2019

      One of best base layers. Material is awesome and it is also looks really nice. Some of the stitches are not that great so -1 star for that but overall really great product.

    • Výborná základná vrstva

      Miloš Gregorka, Slovakia, 31.10.2018

      Výborná základná vrstva. Skutočne nehryzie nezapácha a vytvára ohromný pocit komfortu.

    • Mr

      Robert Mitosinka, Slovakia, 31.8.2018

      Super ale kratke rukavy sa miz daju kvalitnejsie. Velkosti su trochu nevyspytatelne medzi dlhym a kratkym rukavom ... M a M nie je celkom totozne.

    • Parfait

      Mulotti Emmanuel, France, 2.12.2017

      J'ai choisi ce maillot en noir , taille L (1.81m 71 kg) Il est très agréable a porter , ni trop chaud ni trop froid. On oublie même qu'on le porte. Essayé ce matin , température de 2 degrés avec une veste hiver par dessus , parfait . Le petit truc en plus , une ouverture en bout de manches pour passer le pouce et éviter que la manche remonte.

    • Guido

      Guido Bollenbach, Germany, 29.9.2017

      Great Baseler. Warm and soft. What else should be there.......city rides to work or training....prepared against the cold

    • Herr

      Markus Mehlig, Germany, 26.10.2016

      Very comfortable, no smell even after harder rides! Best base layer I've ever worn. Absolutely worth the price!

    • Herr

      Matthäus Grabner, Austria, 25.9.2016

      Sehr angenehm zu tragen, schöne Verarbeitung. Wer es ebenso für den tagtäglichen Gebrauch nimmt, sollte es ev. eine Nummer größer nehmen. So habe ich es nach der Kaufberatung gemacht - passt perfekt.

    • Stefan Ziegenhagen, Cologne Germany

      stefan, 17.3.2016

      checked a lot of base layers, no doubt this one is the best I've ever worn

    • Thomas Bierbaum

      Thomas Bierbaum, Germany, 21.2.2016

      Dieses Unterhemd ist sehr angenehm warm und weich, es hält den Körper warm und trocken, habe es jetzt im Winter als Baselayer bei kaltem, feuchtem und sehr windigem Wetter getragen und mich immer pudelwohl gefühlt. Sehr praktisch sind auch die Daumenschlaufen an den Enden der Ärmeln, beim Drüberziehen der nächsten Schicht und zum Abdichten am Handgelenk. Dieses Unterhemd ist so angenehm, ich trage es nicht nur beim Sport... Klare Kaufempfehlung.

    • Bernd (100% Merino LS Baselayer Black)

      Bernd Konow, Germany, 29.1.2020

      Eins der besten Kleidungsstücke im Laufe meiner Radsport-Ära. Tolles Material, jeden Cent wert. Ich liebe es.

    • super (100% Merino LS Baselayer Black)

      Milan Hulman, Slovakia, 12.1.2020

      Možem len odporučiť super materiál.Len to logo na predku po prvom praní hneď bolo fuč..treba dať lepšie Ale inač len chválim

    • Comfort long sleewe baselayer (100% Merino LS Baselayer Black)

      Jon Dahl Habasson, Czech Republic, 18.11.2019

      Nice soft warm merino fabric which does not smell. I chose size L because of lenght. 182cm, 73kg, 97cm chest and it fits good as well. Normally I wear size M (Merino long sleewe jersey).

    • Chaud (100% Merino LS Baselayer Black)

      Mulotti Emmanuel, France, 13.2.2018

      Sous couche qui fait bien le job. Température négative en ce moment , je le mets avec la veste Softshell Marsala et je n'ai pas froid. Très agréable à porter , doux et aucune couture qui gêne . Pris en taille L 1.81cm 70 kg

    • Markus B. (100% Merino LS Baselayer Laurel Wreath)

      Markus Bee, Germany, 28.10.2017

      Ich hatte noch kein Unterhemd, welches sich so angenehm angefühlt hat. Super sind beim langärmeligen auch die Daumenschlaufen. Der Baselayer schmiegt sich eng an den Körper und reguliert hervorragend Wärme und Feuchtigkeit. Obwohl ich die Trikots alle in M habe (187/74) passen mir die Baselayer in Größe L besser.

    • Great undergarment (Women 100% Merino LS Baselayer Grey)

      Jarmila Jančigová, Netherlands, 12.9.2017

      Really nice feel on the skin, the sweat is filtering nicely, I never stay wet. I wear it under my jersey and during the ride it's a perfect combination. Would prefer a bit wider sleeves though

    • Kvalitne ale strih katastrofa

      Daniel, Slovakia, 16.1.2020

      Aky expert sije tie merino natelniky? Kupil som si L ale mam ho ako damsky crop, rukavy su vytahane.. material je super ale to prevedenie ma sklamalo.

      Isadore Team


      Dobry den Daniel, dakujeme za Vase hodnotenie. Mrzi nas, ze s natelnikom nie ste spokojny. Ohladom vymeny/vratenia produktu Vas budeme zakratko kontaktovat aby sme problem s natelnikom vedeli vyriesit k Vasej spokojnosti.

    • TIM STRANG, United Kingdom, 5.10.2015

      Very nice style and fabric and good quality. Unfortunately, even though I followed the washing instructions, it has shrunk a little and I wish I had bought a bigger size.

    • Very good material and packaging, fit is a problem. (100% Merino LS Baselayer Marsala)

      George Charalambides, United States, 9.1.2019

      Too short to the point of not being practical, and neck opening too large, and arms too short. it's a shame because otherwise the color, material, construction, and remaining cut is perfect for a cyclists' body.

    • Laurel (100% Merino LS Baselayer Laurel Wreath)

      Sebastian Geis, Germany, 5.4.2020

      Hello, The wearing comfort is really great. However, after a few washes, the seams have come loose, so that the foldover of the shirt has dissolved in the lower area.

      Isadore Team


      Dear Sebastian, sorry about the trouble. It must of been defective item. Our customer support have just sent you an email regarding arranging replacement. Thank you for your feedback and patience. All the best, Isadore team.

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