One of Castelli's toastiest base layers, offering both insulation and breathability, the Flanders Warm was made for the conditions seen in Flanders in February – in other words, basically any month between September and May in the UK.

Its SottoZero fabric features a warm, soft, high-loft fleece on the inner layer and offers excellent moisture management, supplemented by mesh underarm inserts.

With its stretch fit and smooth flat-lock seams, it is the perfect winter layer for comfortable wear under both your jacket and bib tights.

Features:

• SottoZero fleece multi-denier 100% polyester fabric
• Flat-lock stitching
• Mesh underarm inserts
• Flat hem tucks away into tights
• Mock turtleneck
• Weight 116g (L)
• Castelli comfort range of -4-10°C