Folding cycling helmet

■ Brand (BRAND): CAIRBULL ■ Model (MODEL NO.): CB-37 ■ PRODUCT: Cairbull FIND 2019 Urban Recreational Bicycle Electric Scooter Balance Bike Folding Riding Helmet ■ Applicable (FOR): road mountain bike ■ Material (Material): shell imported PC + internal imported EPS ■ TECHNOLOGY: In-Mold ■ COLOR: 8 colors available ■ Size (SIZE): M / L (55-59CM) ■ Inner width (WIDTH): 17.5-18CM ■ Venting holes (VENTS): 18 ■ Structure: External IN-MOLD (integrated molding) impact-resistant PC, internal EPS integr