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Castelli FLANDERS WARM base layer, black

65.99 
RRP 67.99 
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From 11.06.2026 (Thursday) Check availability
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Delivery method on Friday 12.06.2026
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Rating (35)
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4,7/5
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Castelli FLANDERS WARM shirt

Warm, quick-drying and comfortable undershirt ideal for rides in the coldest conditions. This product was made for the conditions of Flanders in February. The high-volume fleece on the inside provides warmth to give away, and you'll love the softness against your skin thanks to the excellent moisture wicking of this 100% multi-layer fabric. It is flexible to fit perfectly and the flat seams give an extra feeling of quality.
Product features
Material SottoZero Fleece – 100% multi-layer polyester yarn
Flat seams for greater comfort
Underarm mesh
Raised fitted collar
Flat lower ending for comfortable fit in the pants
Product details
Sex Men
Colour black
Material synthetic material
Season Winter
Sport cycling, hiking, cross-country skiing, running, ski mountaineering, skiing, trail running, alpinism, climbing, via ferrata, camping
Material composition 100 % polyester
Weight 116 g (L)
Temperature range -2 – 10˚C
product ID 175596
Jerseys, jackets, vests, functional clothing
Size XS S M L XL 2XL 3XL
Chest(cm) 88 92 98 100 105 110 115
Waist(cm) 76 80 84 88 93 98 103
Pants
Size XS S M L XL 2XL 3XL
Hips (cm) 90 94 98 102 107 112 117
Inseam (cm) 81 82 83 84 85 86 87
Product rating  (35 ratings)
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Variant Castelli FLANDERS WARM tričko, šedá

A very high-quality undershirt that can be used as the only layer under the gabba 2 convertible jacket even in temperatures just above zero, and I consider myself a thermophilic cyclist. It is definitely warmer than prosecco LS. The mesh in the armpit is absolutely top, since the convertible jacket already has 2 layers under the armpit, so the ventilation comes in handy. Unfortunately, just like other castelli underpants, it needs to be washed more often and after one use it retains the smell. But you can live with that, as its positive qualities prevail.

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Variant Castelli FLANDERS WARM tričko, šedá

The perfect bottom layer. I was surprised how such a thin piece of fabric can make so much comfort in winter. Even during intense riding, it is still warm and conducts sweat well into the next layer. I haven't had anything better yet. I am 178 cm and 62 kg and I took size S. It fits the body exactly, the back part is a little elongated. I recommend ?

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Variant Castelli FLANDERS WARM tričko, šedá

the t-shirt looks great, I ordered XXL, with a chest circumference of 110 and a waist of 100 and a height of 170 cm, it fit well, it is a bit longer, but it is hidden under the pants.
Still tested at 9 degrees and fulfilled the function without problems with the Castelli SQUADRA STRETCH top layer.
The natelnik must be washed after every trip.

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Variant Castelli FLANDERS WARM tričko, šedá

I tried it and in combination with Castelli Go and Perfetto it is ideal for temperatures below 10 degrees. It fits perfectly, the material is pleasant and it dissipates heat excellently. Good choice.

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Variant Castelli FLANDERS WARM tričko, šedá

SK zatial som absolvoval len jednu jazdu v novembri, no pocity a dojmy z tricka su len pozitivne. na vrchu som mal len castelli radoppia bundu.

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Variant Castelli FLANDERS WARM tričko, šedá

The fit is great, warm, functional, the mesh in the armpit has +. With the Alpha RoS jacket, it is enough for me down to -5°C, I already add another warm layer underneath.

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Variant Castelli FLANDERS WARM tričko, šedá

perfect undershirt, luxurious workmanship, mesh in the armpit and really warm. in cold weather, I just wear this and a jacket and I'm equipped

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Variant Castelli FLANDERS WARM tričko, šedá

SK Plní účel . teplé .príjemné na nosenie aj na lyže a ine športy.. netreba nosit vela vrstiev .stači natelnik pod bundu ..

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Variant Castelli FLANDERS WARM tričko, čierna

It wicks away sweat perfectly and keeps the body dry, which you will appreciate in lower temperatures. Excellent bottom layer, worth the investment.

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Variant Castelli FLANDERS WARM tričko, šedá

It suits. Under such thermos, or thermos Zajo or Craft, I wear functional Castelli mesh (also Force) with short sleeves.

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Variant Castelli FLANDERS WARM tričko, šedá

SK veľmi príjemný materiál, nemám pocit umelých vlákien, kúpený druhý kus po 3 rokoch

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Variant Castelli FLANDERS WARM tričko, čierna

SK Presne pasuje na telo, príjemné na nosenie, nezapácha po viacerých noseniach

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Variant Castelli FLANDERS WARM tričko, šedá

SK Výborný nátelník, dobre odvádza pot a aj hreje

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Variant Castelli FLANDERS WARM tričko, šedá

SK Neskutočný komfort pri jazdách v zimnom období.

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Variant Castelli FLANDERS WARM tričko, šedá

For winter and late autumn

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Variant Castelli FLANDERS WARM tričko, šedá

SK Dobrý den, měřím 185 cm a vážím 79 kg...dresy a bundy od Castelli mám ve velikosti XL. Jakou velikost bych měl zvolit u tohoto nátělníku?
Děkuji PV

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SK Dobrý deň,

tiež by som volil veľkosť XL.

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SK Dobrý deň,

Vypredané aj u výrobcu a najskôr bude počas januára.

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Castelli is a classic Italian brand known for its high-quality cycling apparel. They have been on the market since 1876, and they started with clothing for famous Italian football teams. In 1910, their first cycling clothing was made for the world champion Alfredo Binda. They introduced to marked their aerodynamic elastic bibs made from Lycra in 1977. Their list of groundbreaking innovations is very long, and it probably is also a reason why are they so famous. Castelli offers top apparel for all conditions and every bike discipline.

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