CLemon Adult Cycling Bike Helmet, Adjustable Trinity Men Women Mountain Bicycle Road Bike Helmet with Visor - Honeycomb Type 18 Vents Breather Outdoor Sports Safety Protecting Hat Adjustable - This adult cycling helmet goes with a standard size, equipped with the easy-use dial system and side straps make this nutcase helmet adjustable to different head size Detachable Visor - The visor can be detach from the helmet. You can choose free Impact Resistance - This cycling helmet is specially designed for adult rider. Tough and durable PC material. EPS foam which help slow down the impact and protect the head Ventilation - Honeycomb type 18 vents. The adoption of specialized aerodynamic and ventilation design allow air go through the biking helmet which help increase the speed and keep stay cool and comfortable Lightweight - This biking helmet made of lightweight material, the inner pad use of breathable material to wear comfortably