Castelli Core Seamless SS Base Layer

The Castelli Core Seamless SS base layer is a technical cycling base layer designed to offer comfort, stretch, and effective moisture control during bike rides on cool and cold days. Thanks to its seamless construction, it ensures a comfortable and close-fitting fit, keeping the body warm and dry without compromising freedom of movement.

The combination of polyester and polypropylene ensures optimal sweat management, helping to wick moisture away from the skin. This solution helps reduce the feeling of dampness during the ride and maintain thermal comfort even when the intensity of the activity decreases.

The construction is designed to offer balanced thermal protection: the side panels and back feature a lighter knit, while the wide neck opening makes it easy to wear the shirt under cycling jerseys with a low collar.

Ideal for road cycling, the Castelli Core Seamless SS is a versatile choice for those looking for a technical base layer capable of combining warmth, breathability, and an elastic fit in the coolest weather conditions.

Technical features

• Brand: Castelli
• Model: Core Seamless SS
• Type: short-sleeved technical cycling base layer
• Composition: 84% polyester, 16% polypropylene
• Construction: seamless (seamless) for superior comfort
• Breathability: yarns designed to promote moisture management and sweat wicking
• Thermal insulation: high warmth-to-weight ratio, ideal for cool and cold days
• Stretch: highly elastic fit, adapting to the body and supporting movement
• Zoned construction: lighter knit on the sides and back
• Neck: wide opening, designed to be worn under jerseys with a low collar
• Fit: Regular
• Recommended activity: road cycling

Why choose the Castelli Core Seamless SS?

The Castelli Core Seamless SS base layer combines a stretch seamless construction with technical polyester and polypropylene yarns, offering effective sweat management and good thermal insulation. It is ideal for those who want to tackle bike rides on cold days with a comfortable, breathable base layer capable of maintaining a pleasant dry feel during the ride.