A piece that started in a Team Ineos focus group - Castelli's warmest base layer (Flanders) with essentially a built-in neck warmer.
On merely cold days, keep the neck down to fill in the space inside the collar of your jacket.
On brutally cold days, pull it up over your face for extra warmth, with the double layer SottoZero fleece fabric to keep you even warmer.
Made with Castelli's warmest base-layer fabric and an extra-long neck that can be pulled up to cover your mouth and face.
SottoZero multi-denier 100% polyester fleece fabric
Mesh armpit insert
Higher than normal neck can be pulled up to act as a neck warmer
-8°-6°C / 18°-43°F