Giro Atmos II Matte Black/Highlight Yellow M

Bicycle helmet in a modern, yellow-green version with 26 vents, Giro Atmos II Mat Black / Highlight Yellow. You can take this very light helmet on the bike and on the road. Made with state-of-the-art technology, it boasts a clever interior reinforcement Thermoformed SL Roll Cage and also an In-mold polycarbonate construction. Precise ventilation is provided by Wind Tunnel with 26 vents and clamping, and the Roc Loc 5 system with both horizontal and vertical helmet settings . This size M is ideal for head circumference 55 - 59 cm.

Key features of the Giro Atmos II Mat Matt Black / Highlight Yellow, size M

• Race cycling helmet on the bike in a timeless, yellowish design
• 26 ventilation tunnels for perfect air extraction
• Roc Loc 5 Fit for safe horizontal and vertical fastening
• In-mold design with polycarbonate shell
• Internal Reinforcement Theremoformed SL Roll Cage
• Very light helmet weighing only 270 g
• Size M for head circumference 55 - 59 cm

Wind tunnel ventilation system

Giro helmets are developed using the Wind Tunnel ventilation system. This sophisticated 26-hole system allows for perfect cool air circulation around the rider's head. Innovated ventilation tunnels allow cold air to enter the front of the helmet , then circulate over the head, and residual hot air is fed through the rear openings. It is one of the most efficient cooling systems available.