Castelli's loose sleeves, Bolero, are designed to reduce air resistance and increase speed.

These loose sleeves are crafted with a specific pattern that has been shown to reduce air resistance. The grooves along your arms help enhance aerodynamics.

You can effectively combine these loose sleeves with the Body Paint 4.X TT suit to optimize your conditions for breaking your next record.

Specifications and features:

• Aerodynamic pattern along the arms
• Weight: 70 g
• Can be effectively combined with a TT suit