​Cairbull Adjustable Bicycle Helmet Road Cycling Safety MTB Mountain Bike Sports

Description

Specification:
Size: M:52-57cm,L:57-61cm
Weight: about 290g
Material: PC+EPS+adjustable brim
Air holes:21
Structure: outer strong in-mold PC shell to against the shock and inner EPS can absorb the shock well.
Product feature:
1. Compatible for road bike,for man and women.
2 .It passed CE EN1078 Certification
3.it past the safety test
4.the EPS foam was thickened.
Advantages:
It has the good ventilate function with air holes,and good protective performance cause it was specially designed for the endurance racing athlete.
The inner EPS shock-release system was put in.and we used the aramid filament to enhance the strength.