Castelli Flanders Warm Long Sleeve Base Layer with Neck Warmer

It's one of my essentials for winter. The previous one was still in good condition, but I forgot it in a hotel. This undershirt is both warm and breathable, especially thanks to ventilated areas under the armpits. The collar can go up to the mouth, which is very practical in cold weather. Just complete it with a beanie under the helmet, and you're perfectly protected from the cold. (Translated review)

comfortable undershirt, keeps warm, well ventilated, effective, good purchase. (Translated review)

Very technical micro-polar underwear, thin, light but warm and breathable. The aerated mesh under the arms and the roll neck are effective. Very happy with this purchase (Translated review)

THE thermal underwear par excellence. Under a jacket or under a jersey depending on the outside temperature but no more thickness unless you want to boil (Translated review)

Very comfortable, keeps me warm. However, I ordered it in XL, as it was too tight for me around the neck! I am 1.76m tall and weigh 73 kg. (Translated review)

Beautiful product but be careful to take one size up from your clothing in other brands. (Translated review)

Base layer to reserve for not too intense winter outings because otherwise there is a risk of overheating and the high collar can become annoying. Just the right size for a racer! (Translated review)

Of course, this Castelli Flanders is not cheap; but what quality: it's warm, cozy, and stays dry. As always with Castelli, this garment runs small. Don't hesitate to take a size up to avoid feeling constricted. (Translated review)

With a jacket and only a winter jacket, it does the job! (Translated review)

very warm, protects the neck well, pleasant to wear? (Translated review)