Castelli Flanders Warm baselayer review

We've tested the Flanders Warm baselayer, which Castelli claims is just right for Flanders in February

Cycling Weekly Verdict

A quality warm baselayer for cold conditions, although a bit prone to odour

Reasons to buy
  • +

    Warm and comfortable

  • +

    Does not get wet under exertions

  • +

    A close fit

  • +

Reasons to avoid
  • -

    Synthetic fabric collects odours

  • -

    Sizing is a bit out

  • -

You can trust Cycling Weekly. Our team of experts put in hard miles testing cycling tech and will always share honest, unbiased advice to help you choose. Find out more about how we test.

Castelli claims that its Flanders Warm is designed for conditions in Flanders in February – which will be about what we get here in the UK too. Baselayer garments for proper winter conditions are now often made of merino wool, but Castelli sticks with synthetic for the Flanders Warm, although it’s so soft that you would hardly know it is made of polyester. The fabric is fleeced on the inside surface.

Thank you for reading 20 articles this month* Join now for unlimited access

Enjoy your first month for just £1 / $1 / €1

*Read 5 free articles per month without a subscription

Join now for unlimited access

Try first month for just £1 / $1 / €1

Paul Norman

Paul started writing for Cycling Weekly in 2015, covering cycling tech, new bikes and product testing. Since then, he’s reviewed hundreds of bikes and thousands of other pieces of cycling equipment for the magazine and the Cycling Weekly website.

He’s been cycling for a lot longer than that though and his travels by bike have taken him all around Europe and to California. He’s been riding gravel since before gravel bikes existed too, riding a cyclocross bike through the Chilterns and along the South Downs.