Bike Helmet, Lightweight Cycle Helmet, Adjustable Mountain Road Cycling Helmet for Adults, MTB helmet with Detachable Visor for Mens Ladies

Product Description:
1. Fit System:
The backside mini adjust dial on our bike helmet is equipped to create smooth size adjustment (Suitable For Head Circumference: 57-61cm), which fits most of adults mens and ladies.
It can be easily rotated simply by one hand and is designed with vertical adjustment which offers perfect head fit.

2. Ventilation:
17 wide vents provid...