Specifications:- Overall Dimension(LxWxH): 14 15/16" x 11" x 9 7/16" (38 x 28 x 24 cm)- Size: Size Xl- Fit Head Circumference: 24" to 24 7/16" (61 to 62 cm)- Material: Abs Shell, Eps Liner- Net Weight: 2.98 Lbs (1.35 kg). Package Contents:- 1x Helmet- 1x Carrying Bag- 1x Manual. Notice: - Please measure your head's circumference to determine which size is suitable for you before purchase.