No one enjoys cycling in warm weather with a stifling helmet. That"s why this helmet is designed with over 31 vents, ensuring abundant airflow and cooling to make your ride more comfortable. Features: This adult mountain bike helmet is designed to fit head circumferences of 59-61cm, ensuring a snug and secure fit. Equipped with an EPP chin support, this mountain bike helmet offers enhanced protection. Featuring a removable and washable comfort liner, this MTB helmet ensures easy maintenance and hygiene. Designed with over 31 vents, this helmet provides ample airflow and cooling. Lightweight in design, this helmet ensures long-term use without causing any strain or discomfort to your head and neck. Specifications: Material: PC, EPS Color: Camouflage Orange or Camouflage Blue or Camouflage Green or Black or Black and White or Red and Black (optional) for head circumference 59-61CM Size: 36.8x24.6x28cm or 14.5x9.7x11in Weight: 710g or 25oz Package List: 1 x bike helmet