This open helmet is very suitable for cities and travel, and is suitable for standard functions and performances of various series in terms of comfort, size, safety and functionality. It is a beautiful and safe helmet, very suitable for those who are looking for a full-face helmet and a practical open helmet. Very suitable for you to go for a drive. happy shopping!Material: ABS material + leather + PC filmDOT Security StandardWith adjustable headbandOptical quality scratch-resistant plastic lensAppearance: Half-covered bird earsApplicable season: four seasonsColor: blackStyle: A, B, C, DWeight: 2.5KGRemarks: Please measure your head circumference before placing an orderTo ensure the correct size, please do the following:Use a cloth roll to measure the head.Wrap the tape measure around 1 inch or 25 mm or 2.5 cm above the eyebrows, directly above the ears, and the widest area behind the head.The widest measurement will show the helmet size.If you don't have a tape measure, you can use a ruler to measure it.Helmet size:M: (54-56 cm);L: (57-59 cm);XL: (60-62 cm)Products include:1*motorcycle helmetIf you have any questions about our products, please feel free to contact our customer service. We will try our best to help you and meet your requirements.