Whether you're lining up for an autumn barrier-hoopin' mud-fest, kicking up fallen leaves along winding stretches of black top, or weaving through lethargic city traffic, the Castelli Wind Base Layer Long-Sleeve Top will keep your core toasty.

• SG0.6 Wind Fabric is stretchy for a next-to-skin fit without hindering movement
• Ultra lightweight fabric also keeps cool wind at bay
• Seamless construction and smooth shoulders prevent irritation