Viva AY-21-L Adult Bicycle Helmet with Detachable Visor Back Light Adjustable Size Cycling Helmet Lightweight Mountain Road Bike Cycle Helmets for Men and Women (Black-Blue)

• Perfect for climbing, riding, skiing, cave exploration, outward bound training, etc.
• Made of premium quality EPS, shockproof and wear resistance, super durable and very light to wear.
• The outer hard inner soft structure can effectively disperse the external force and absorb the impact force. Protecting the safety of the user’s life.
• Rotate the adjusting roll to adjust size and fit your head size, convenient for you.