The Castelli Mortirolo 6S Jacket lies at the less severe end of Castelli's winter range. It is intended to take the edge off dry, cold mornings and allow warm-blooded cyclists to ride without overheating.

The upper chest and sleeves of the jacket are constructed from windproof yet breathable GORE-TEX INFINIUM WINDSTOPPER X-Fast fabric, which has a fleece liner for added softness and warmth, while the lower body is made from thinner GORE-TEX INFINIUM WINDSTOPPER fabric.

Meanwhile, the back is constructed from a more breathable fabric with no windproof veneer, which allows moisture to escape freely. This combination of wind proofing at the front and breathability at the back helps you to maintain a stable core temperature in cool weather, regardless of your activity levels.

Finished with a reflective panel at the chest and useful pockets, the Castelli Mortirolo 6S Jacket is minimalist and will keep you pleasantly warm on a fine winter's day.

Key features:

• Made for warm winters and cyclists who run hot
• GORE-TEX INFINIUM WINDSTOPPER X-Fast fabric at the upper chest and sleeves
• GORE-TEX INFINIUM WINDSTOPPER fabric at lower front
• Breathable Warmer fabric at the back
• 3 rear pockets for storage
• Reflective panel on chest
• Weighs 337g (large size)
• For use at temperatures from 6-14"?C, 43-57"?F