MOON Cycling Blue and White PC/EPS 21 Vents Protective Ride Helmet

Best Use:Cycling,Recreational Cycling,Road Cycling,Mountain Cycling; Gender:Unisex; Style:Half Shell; Color:Blue,White; Material:EPS,PC; Head Circumference (inch):21-25; Vents:21; Net Weight (kg):0.28; Size:Large: 59-63cm,Medium: 55-59cm; Head Circumference (CM):55-63; Fit For:24-25inch (61-63.5CM),23-24inch (58.5-61CM),22-23inch (56-58.5CM),21-22inch (53-56CM)