Designed for WorldTour riders and now available to you, the Castelli Body Paint 4.X Speed Suit Long Sleeve is a marvel of aerodynamic and fabric engineering. Created for time trials, it's another piece in your 'ride faster' puzzle.

Aerodynamics Honed

You've got the TT bike. Dialled in your riding position. Got the aero wheels and latest aero helmet. Now it's about you. The Body Paint 4.X Speed Suit Long Sleeve delivers that finishing touch to your fast riding set up. 

This is no ordinary Lycra skinsuit though. No, Castelli have spent two years to perfect it. Countless hours of testing at the Norwegian Technical University, covering both fabrics and aerodynamics and refinement through racing it in the WorldTour have ensured the Body Paint 4.X Speed Suit Long Sleeve is ruthlessly efficient through the air.

Smooth. Streamlined. Focused.

Starting with the aero-fit, it's optimised for a time-trial position and with reduced seams, it offers both incredible comfort and slippery airflow. Long legs with flat grip tape provide a smooth transition from suit to skin and the long-sleeves with thumb-loops maintain an efficient fit. Be warned, this is a suit designed for Pro riders, so expect a second-skin fit, but knocking time off your time trial times is worth it. 

When you take to the TT start line you'll also benefit from the clear number window to the back. It keeps your race number smoothly in place and out of the wind and there's now no need for safety pins ruining your best race suit and smooth aerodynamics. 

KISS Air² Seatpad

When you're tucked in your aero position you'll enjoy on-the-saddle comfort from Castelli's KISS Air2 seat pad. Next to the skin, you'll enjoy the luxury of Castelli's softest ever surface fabric, delivering immediate comfort. Seamless construction and stretch fit all but eliminate chafing as you push the watts. Next comes the dual-density, variable thickness padding. This sees maximum density and thickness across the ischial zone, reduced thickness around the perineum and then minimum thickness at the edges. This is all wrapped up in an anatomically shaped pad for optimal comfort for any distance.

About the Castelli brand

Castelli proudly produce high performance cycling apparel. Since 1876, they've been the tailor for the champions. It was their innovative mindset which brought the earliest heroes & legends like Binda, Coppi and Bartali. Castelli cycle clothing became legendary too inventing the skinsuit, the silk jersey, pockets on jerseys, and the first LYCRA® short used in professional racing.