Cooling TechnologyBy using hydrophilic and hydrophobic yarns, this Castelli Active Cooling Sleeveless Base Layer holds a bit of moisture next to your body while allowing free airflow through the fabric, thanks to the special open knit. You get...

Tour de France winning Pro-Level BaseThe pro cyclists Castelli works with know the importance of the right base layer for the conditions. That's why the Castelli Pro Mesh Sleeveless Base Layer is made for the widest range of conditions and is designed to...

It's All Bout the Base On extremely cold days use this as a first layer under a Flanders Warm second base layer, or under a thermal jersey, featuring a body mapping construction with Prosecco hydrophilic treatment on the main body fabric and...

Time to Give Seamless Base Layers Another Try Seamless construction promises stretch and comfort, but most base layers on the market have a nylon and Lycra mix that feels comfortable when you put it on but then ends up feeling wet when you're actually...

The last thing you want, or need, while cycling is to feel the discomfort of sweat soaking through your clothing and to then have said clothing slapping against your skin for the entire ride. By adding a Castelli Core Mesh 3 Sleeveless Base Layer under...

Its all in the Base Requested by professional riders, and designed for those in between conditions when it's not too hot or cold. The Pro Issue 2 Base Layer is perfect to wick moisture away from your body and keep you comfortable, while providing a small...

Summer starts hereCreating that perfect summer-weight base layer is harder than one might think. We have deliberately made this product as minimalist as possible to let the open-mesh fabric pull moisture off the skin. The secret to this base layer lies...

The Pro Issue Shortsleeve Baselayer is all about those in between conditions. Incredibly lightweight and with plenty of breathability the Baselayer excels at keeping you dry underneath your jersey. The 3D mesh fabric creates dead air space next to your...