DKONI Adult Bike Helmet for Men & Women, Adjustable Cycling Helmet with 10 Vents Aerodynamic Design, Safety Certified Bicycle Helmet with Removable Washable Pads for Commuting, Road Biking & Skating

["PERFECT FIT BIKE HELMET: Available in M and L sizes to fit most men and women. M size: 21.2–22.5 inch (54–58cm); L size: 22–24 inch (56–61cm). Equipped with a smooth one-hand adjustment dial for a customized snug fit, and it is designed to avoid pulling your hair for all-day comfortable wear.","VINTAGE DESIGN WITH BUILT-IN SUN VISOR: The integrated sun visor effectively blocks harsh sunlight, rain, splashed mud and flying tree debris, delivering full eye protection for safer daily commuting and trail riding.","DUAL SAFETY CERTIFIED: DKONI bike helmet complies with both US and EU safety standards. Reinforced ABS shell is in-molded with premium EPS inner foam for superior shock absorption. The extended shell design covers the sides and back of your head, providing full coverage protection and enhanced durability.","STAY COOL & COMFORTABLE: Equipped with 10 air vents, featuring a streamlined aerodynamic design and hidden internal air channels to enhance airflow and rapidly dissipate heat. It keeps your head dry even on hot days or during long rides. The removable, washable and quick-drying inner pads are easy to maintain, ensuring lasting comfort.","COMFORTABLE MOUNTAIN BIKE HELMET: Comes with a thick detachable sun visor, soft breathable inner sponge pads, and skin-friendly adjustable chin strap. All-day snug fit and premium comfort for urban commuting, mountain biking and casual riding."]