Castelli Active Cooling Sleeveless Baselayer Winter • Racing Speed XLR's feature

• Racing Speed XLR's feature the top CULT ceramic bearings for maximum performance and efficiency

Reflective detailing on back

It’s been kept secret for the past two years but is now available to non-World Tour riders

eliminate noise

Fits the following Hayes disc brake calipers:

Castelli Active Cooling Sleeveless Baselayer Winter • Racing Speed XLR's featurePROSECCO ICE SLEEVELESS BASE LAYER Ride cooler, faster, longer. Energy activated technology provides more cooling than does sweat evaporation alone, and the dynamic print pattern shows you where its working. This ultralightweight base layer also provides 50+ UPF, making it the perfect companion to your lightweight summer jerseys. Made with Prosecco Ice fabric Energy activated technology provides more cooling than sweat evaporation alone Dynamic print