Granvela BC015 Road/Mountain Bike Helmet Adult Skate Bicycle Helmet, Large Fits 56-62cm Adjustable Ultralight Integrally for Men & Women Lightweight integrally-molded EPS bicycle helmet 24 vents bring cool air in and flush warm air out, well-ventilated Soft, removable, washable, and antibacterial pads for best wearing comfort Weigts 260 g and comes in Universal Adult size.Head circumference: about 56-62 cm adjustable Features: streamlined design,anti-windage,lightweight,strong, 24-hole breathable big holes,comfortable lining, and regulator