The Soudal Quick-Step Aero Race 8S Jersey benefits from Castelli's years of aerodynamic innovation, paired with modern technology, to be the fastest the brand has ever made, without sacrificing comfort in the quest for speed.

It uses CFD engineering to hide seams from the wind, plus a special ribbed shoulder fabric that minimises drag at race speed, to achieve CdA savings of up to 6% over previous jerseys – a benefit that, since 80% of drag on a cyclist comes from the body, will give you a definite advantage over competitors.

Although S stands for speed, the jersey is also made from smooth, stretchy fabric for a racing fit without constriction, with elastic to both anchor the hem while you're in race position and support the pockets carry to gels, spares and other essentials you require to achieve top performance. Meanwhile, bonded sleeve endings feel soft against your skin.

Wear it to feel great and achieve better results, with every watt of your effort being efficiently converted into velocity when seconds matter.

• A fast jersey every serious rider should have in their kit bag, built for speed
• Uses CFD-based fabric placement and seam construction
• Ribbed shoulders, engineered to detach the air stream, deliver up to 6% CdA savings
• Made from light, stretchy and breathable fabric, for a comfortable racing fit
• Features soft, bonded sleeve endings and elastic at waist to support pockets
• 3 x rear cargo pockets
• With reflective detailing for enhanced road safety
• For use at temperatures of 18-36°C
• Weighs 129g