Sigma-II Compact Aerodynamic Cycling Helmet Size:M/L | 58-62cm and minimizes chafing

and minimizes chafing

the Keo Blade ensures intuitive clipping in/out

Endurance Geometry - Taller stack height and relaxed riding positions improve rider comfort and stability during long rides

Equipped with both DWR finish & naturally hydrophobic allowing you to stay warm even if caught in the rain or on the slopes

With class-leading aerodynamics

Sigma-II Compact Aerodynamic Cycling Helmet Size:M/L | 58-62cm and minimizes chafingExperience unparalleled performance with our new compact and lightweight cycling helmet!. The Sigma II features a revolutionary magnetic lens attachment system, enabling quick and effortless attachment and removal of a wrap around eye shield. This innovative design allows for easy storage of the lens in the "flipped up" position, making it ideal for fast transitions in triathlons.. Hidden magnetic receivers on the helmet are fully compatible with SKY