This seamless baselayer offers comfortable stretch and surprising warmth for its weight, making it ideal in cool conditions and excellent for wicking sweat away from the body.

Castelli's Sleeveless Seamless Base Layer promises good stretch and comfort. While many baselayers on the market have a blend of nylon and Lycra®, which feels comfortable when putting on, they often end up feeling wet during the ride, causing you to feel cold when you stop. Castelli has worked hard to create this Core Seamless baselayer, which keeps you warm and dry thanks to the addition of polypropylene and polyester yarn, without compromising on its comfortable stretch.

Product Features & Features:

• 84% polyester / 16% polypropylene yarn offers soft, warm wicking and exceptional stretch fit
• Seamless construction ensures extra comfort
• Lighter weight on sides and back
• Wide neck opening to fit under jerseys with short collars