Product information: Color: black carbon fiber (send mask + storage bag), white carbon fiber (send mask + storage bag), red carbon fiber (send mask + storage bag), blue carbon fiber (send mask + storage bag), orange carbon fiber (send mask + storage bag) Bag), green carbon fiber (send mask + storage bag), black cracks (send mask + storage bag), white cracks (send mask + storage bag) 1. Specifications: Size: S: 52-55cm, M: 55-57cm, L: 58-61cm, XL: 61-64cm Gender: male, female, child 2. Material: Exterior: ABS, Interior: EPS Unicase technology, safer and more perfect 3. Storage tips: Do not store in a humid environment, close to a heat source, or directly under light or under a helmet for drying treatment. It is recommended to use canvas packaging for storage. 4. Shockproof: Weight about 510g Ventilation, use air cooling to release air Anatomical design, high-grade double-sided velvet protection pad Easy to use, magic loop connection Packing list: Helmet x1

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