It is manufactured by high technology IN-MOLD, which ensures the highest safety standard. The combination of 22 ventilation holes, low weight, perfect fit and aerodynamic shape gives a perfect comfort. With a removable shield WIND fits on the road and into MTB as well. Practical clamping system that optimally adapts to the shape and size of the head ensures a perfect fit of the helmet on the head. Antibacterial lining removable mesh insect takes care of perspiration. Race with the Wind. Size description: M: 56-58 cm Weight: M: 240 g Number of ventilation holes: 22 The durability of the helmet is guaranteed by proven safety according to the CE EN 1078 standard Spare padding of helmet included FREE