The Nucleus Air redefines breathable performance, combining comprehensive ventilation with Sidi's signature protection.

Designed for urban and outdoor adventures, it features D3O ankle protectors for superior impact protection, a Materiis outsole for long-lasting grip and comfort, and a patented Fortex internal structure that reinforces stability without sacrificing flexibility. Lightweight, protective, and fully ventilated, the Nucleus Air offers all-day comfort and safety wherever the road takes you.

PERFECT COOLING FOR EVERY RIDE
High-tenacity ventilated fabric with all-around reinforcements creates a fully ventilated, lightweight, and durable structure.

D3O IMPACT PROTECTORS
Safety without constraints.

FORTEX TECHNOLOGY
Protection made imperceptible.

EXCLUSIVE MATERIIS COMPOUND
Grip on any terrain, comfort on the pedals and while walking.

STABLE, PROTECTED, AND SAFE
The elongated profile is anatomically contoured for protection, while the extended lacing system helps prevent the foot from slipping during a crash.

ALL-DAY COMFORT FOR EVERY RIDER
An advanced last adapts to multiple foot types, ensuring comfort, stability, and control.