The Triple 8 Gotham Dual Certified Skateboard and Bike Helmet is the perfect blend of comfort, safety, and good looks. Dual-certified for both bike and skate, and its innovative Conehead EPS liner offers additional protection with collapsing cones that act like a crumple zone to absorb the energy from a crash and spread the force sideways within the helmet liner. An ABS shell, with an urban profile and subtle brim, features Triple Eight logo vents for maximum airflow. Ideal for biking, skateboarding, rollerblading, roller derby, and commuting, the helmet complies with U.S. CPSC Safety Standard for Bicycle Helmets for Persons Age 5 and Older and ASTM F-1492 Skate safety standards. Includes two sets of removable, washable terrycloth Sweatsaver Fit Pads, an adjustable dial system, and chin strap with side release buckle for customizing the fit. Available in three sizes: Size XS/S fits 18.9 – 21.3 in (48– 54 cm), S/M fits 21.7 – 22.8 in (55 – 58 cm), L/XL 23.2 – 24 in (59 – 61 cm). To determine proper size, measure using a soft measuring tape or string.PRO TIP: If your measurements are in-between the sizes shown or you’re simply in doubt, we strongly recommend sizing up to the larger size. We have found over the years that customers do better when they choose the larger size. Size XS/S fits 18.9 – 21.3 in (48– 54 cm), S/M fits 21.7 – 22.8 in (55 – 58 cm), L/XL 23.2 – 24 in (59 – 61 cm). Includes two sets of removable, moisture-wicking Sweatsaver Fit Pads, and an adjustable dial system and chin strap with side release buckle for custom fit. Complies with U.S. CPSC Safety Standard for Bicycle Helmets for Persons Age 5 and Older and ASTM F-1492 Skate safety standards. Conehead liner construction has collapsing cones that absorb energy and spread force sideways within the helmet; ideal for biking, skateboarding, rollerblading, BMX, derby, and commuting. Dual certified, urban-style helmet for skateboarding and biking features a vented ABS shell with a subtle brim, and an impact-absorbing EPS liner.Special Feature: Adjustable. Size: Large/X-Large. Age Range (Description): Adult. Color: Black Rubber. Brand: Triple Eight. Date First Available: May 1, 2014. Best Sellers Rank: #32,598 in Sports & Outdoors. Customer Reviews: 4.6 out of 5 stars 1,147 ratings 4.6 out of 5 stars. : B00JS6XVK8. Sport Type: ?Skateboarding. Included Components: ?Helmet. Model Year: ?2021. Part Number: ?337004-001-4LX. Manufacturer: ?Triple 8. Number of Items: ?1. Suggested Users: ?unisex-adult. Material: ?ABS. Warranty Description: ?180 day manufacturer. Brand Name: ?Triple Eight. Package Weight: ?0.91 Kilograms. Item Package Dimensions L x W x H: ?11.18 x 9.8 x 7.13 inches. Item Weight: ?1 Pounds. Inner Material: ?Expanded Polystyrene. Item Dimensions LxWxH: ?18.71 x 11.82 x 22.25 inches. Recommended Uses For Product: ?Skateboarding. Vehicle Service Type: ?Bicycle. Outer Material: ?Acrylonitrile Butadiene Styrene. Model Name: ?gotham. Special Feature: ?Adjustable. Size: ?Large/X-Large. Age Range (Description): ?Adult. Color: ?Black Rubber. Brand: ?Triple Eight.