The Castelli Flanders Neck long-sleeved base layer is a garment born from the experiments with Team Ineos, a warm base layer with an integrated neck warmer. On moderately cold days, you can keep the neck warmer down so that it stays inside your jacket.
On days with the coldest temperatures, take it out and cover your face to warm up thanks to the soft Sottozero fabric in contact with your skin.

• 84% polyester, 16% polypropylene yarns provide soft, warm wicking and exceptional stretch fit.
• Seamless construction means extra comfort.
• Lighter weight on side and back.
• Wide neck opening to fit under short-collared jerseys.
• 4C/16C.
• Weight: 194 gr
• Color: Black.

The Castelli Core Seamless Long Sleeve Base Layer offers exceptional comfort and warmth in cool to cold conditions. Crafted from a blend of polyester and polypropylene yarns, it efficiently wicks moisture and provides excellent stretch for a snug fit. The seamless design enhances comfort, while lighter panels on the back and sides boost breathability. Its wide neck opening is compatible with short-collared jerseys, making it an essential layer for performance in varying temperatures.