Castelli Nebula Thermal Long Sleeve Jersey At the heart of the Nebula Thermal Long Sleeve Jersey is Castelli's advanced 3D-knit main body fabric. This innovative material traps warm air close to the skin, providing effective thermal insulation without adding unnecessary bulk. At the same time, the fabric excels at moisture management, helping to regulate body temperature and keep you dry during hard efforts. Complementing the main body, the side panels and sleeves feature a highly stretchy fleeced-knit blend that enhances comfort, freedom of movement and overall fit, ensuring the jersey moves naturally with you throughout every ride. Practical details make the Castelli Nebula Thermal Long Sleeve Jersey as functional as it is comfortable. A gripper elastic waist keeps the jersey securely positioned in the riding posture, while three rear pockets provide ample storage for nutrition, tools and ride essentials. The easy-sliding YKK® Vislon® zip allows quick ventilation adjustments when conditions change, making it easy to manage your temperature on the move. For cyclists seeking a versatile thermal cycling jersey that combines warmth, comfort and performance, the Nebula Thermal Long Sleeve Jersey is an essential addition to any cold-weather cycling kit.