A modern approach to seamless baselayers. Its seamless construction promises stretch and comfort, but most competitors on the market are made from a nylon/Lycra® blend fabric that still feels comfortable when you put it on, but gets so wet (and feels like it) when you ride that you freeze when you stop.

Castelli has worked hard to ensure that this Core Seamless Baselayer keeps you warm and dry thanks to the addition of polypropylene and polyester yarns, without compromising the stretchy comfort of "seamless". Castelli think they've found the sweet spot, providing a comfortable level of warmth for cool to cold days.

Seamless for comfort and surprisingly warm for its weight, this base layer is ideal in cool conditions and offers excellent moisture management.

Features of the Castelli Core Seamless undershirt short sleeve for men:

• Blend of polyester/polypropylene yarns for soft, warm wicking and exceptional stretch fit
• Seamless construction means extra comfort
• lighter weight on the side and back
• wide crew neck to fit under short-sleeved jerseys

Material 84% polyester, 16% polypropylene