1、The use of 3D keel design greatly enhances the structural strength of the helmet and provides better protection when impacted. 2、Using integrated edging technology, the whole outside of the helmet is wrapped in PC, the two materials are seamlessly connected, more textured. 3、This product uses a large number of lightweight EPS materials to ensure the safety factor, the overall weight becomes lighter, adopts buckle that meets safety standards, slips off smoothly, and locks firmly. 4、19 large‑open air guide holes to help heat dissipation and ventilation, strengthen airflow, reduce air resistance, and ensure that riding is not stuffy. 5、The upgraded webbing adopts a loop design to reduce friction on the face and ears, making it more comfortable and fit to wear. 6、The webbing is made of reflective strips, which can generate high‑light warnings when encountering weak light at night, which improves the safety factor of night riding. 7、The tail is lengthened, and the safety factor of the back of the wrapping is higher, comfortable lining, hook and loop bonding, quick and easy to disassemble, easy to clean, cushioning fit. 8、The head circumference adjustment knob is set at the rear of the helmet, and a more comfortable wearing experience can be found through adjustment. Item Type: Mountain Bike Helmet Material: PC+EPS Color: As Picture Shown Size: L Head Circumference: Approx. 57-61cm/22.4-24.0in Weight: Approx. 592.0g/20.9oz Hole Number: 19 1 x Mountain Bike Helmet 1 x Manual