Castelli Core Seamless Cycling Base Layer

Castelli Core Seamless Base Layer

The Castelli Core Seamless Base Layer is a sleeveless cycling base layer designed for effective moisture management, seamless comfort, and optimal temperature regulation in cool to mild conditions. Its specialized fabric blend keeps you dry and warm while providing exceptional stretch and a second-skin fit.

Key Features

• Seamless construction delivers outstanding comfort and eliminates chafing.
• Polyester and polypropylene blend provides excellent moisture wicking to keep skin dry.
• Exceptional stretch ensures a perfect body-contoured fit and freedom of movement.
• Lighter structure on sides and back enhances ventilation and temperature control.
• Wide neck opening allows invisible wear under cycling jerseys.
• Ultra-lightweight design enables effective layering without added bulk.

Efficient moisture management

The polyester/polypropylene fiber blend rapidly moves sweat away from the skin, helping maintain dryness and preventing chilling during stops or descents.

Perfect base layer for layering

The Core Seamless Base Layer works as an effective first layer that enhances comfort and thermoregulation under a jersey or jacket. Ideal for cooler rides and transitional seasons.

Recommended use: road cycling, training rides, and cool or variable weather conditions.

Temperature range: approx. 8–20 °C