JBM Adult Cycling Bike Helmet Specialized for Men Women Safety Protection CPSC Certified (18 Colors) Black/Red/Blue/Pink/Silver Adjustable Lightweight Helmet with Reflective Stripe and Removal CAN ADJUSTABLE TO DIFFERENT HEAD SIZE: 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 and suitable for both men and women. IMPACT RESISTANCE: This nutcase bike helmet is specially designed for adult rider. Material use the tough and durable PVC & PC, EPS foam which help absorb the impact and protect the head during crash. VENTILATION: The adoption of specialized aerodynamic and ventilation design allow air go through the biking helmet which help increase the speed and keep stay cool. LIGHTWEIGHT: This biking helmet made of lightweight material, the inner pad use of breathable material to wear comfortably. Package included: 1 x Helmet