About this item Multi-Sporting Gear: These Skateboard Helmets are flexible and suitable for Multi-sports activities, include Inline & Roller Skating, Skating, Skateboarding and Scooter. These helmets would be the essential protective gear for any outdoor sports-lovers. Size Chart : Small: 18.1”- 19.7”, Medium: 19.7” - 22.8”, Large: 20.9” - 23.2”. These Skateboarding helmets come with an adjustable strap which make it flexible to fit you. The flexibility of the strap make it a unisex product and would fit both well for both men and women, boys and girls. Impact Resistance:The material use is tough and durable PVC & PC, EPS foam which would help absorb the impact and protect you. Ventilation: Use of multiple vents, special aerodynamic design and breathable foam to reduce sweating and keep staying cool. It also reduces the high body temperature caused by intense body movements. Package included:1 x Helmet. Recommended Age Grading: 8+